• The 20th International Conference on e-Society 2022, Porto (Portugal), online, March 12-14, 2022
• The 13th International Conference on Advanced Doctoral Conference on Computing, Electrical and Industrial Systems DoCEIS 2022, Caparica (Portugal), June 29 – July 1, 2022
• 31st IEEE International Conference on Enabling Technologies: Infrastructure for Collaborative Enterprises WETICE 2022, Stuttgart (Germany), June 29 – July 1, 2022
• The 9th International Conference on the Human Side of Service Engineering HSSE 2022, New York (USA), July 24-28, 2022
• The 23rd  IFIP Working Conference on Virtual Enterprises PRO-VE 2022, Lisbon (Portugal), September 19-21, 2022
• The 15th International Conference on Theory and Practice of Electronic Governance ICEGOV 2022, Guimaraes (Portugal), October 4-6, 2022 (Program and Steering Committees)
• 11th International Conference on Electronic Government and the Information Systems Perspective EGOVIS 2022, Vienna (Austria), August 22-24, 2022
• 1st International Conference on Personalization and Recommender Systems PeRS'22, Sofia (Bulgaria), September 4-7, 2022
• The 9th Central and Eastern European e|Dem and e|Gov Days 2022, ceeeGov Days 2022,  Budapest (Hungary), September 22 – 23, 2022
• International Conference "Challenges and Reality of the IT-space:
  Software Engineering and Cybersecurity" – SECS-2022, Kyiv, Ukraine (online),
  October 25–26, 2022

• The 19th International Conference on e-Society 2021, Lisbon (Portugal), online, March 3-5, 2021
• The 4th International Conference on Information Science and Systems ICISS 2021), Edinburgh (UK), March 17-19, 2021
• Central and Eastern European e|Dem and e|Gov CEEEGOV Days 2021, Budapest (Hungary), May 10-11, 2021
• XVI Congress of e-Economy (Kongres Gospodarki Elektronicznej), Warsaw (Poland), May 18, 2021
• The 12th International Conference on Advanced Doctoral Conference on Computing, Electrical and Industrial Systems DoCEIS 2021, Caparica (Portugal), July 7-9, 2021
• The 18th International Conference on e-Business ICE-B 2021, Online, July 7 - 9, 2021
• The 8th International Conference on the Human Side of Service Engineering HSSE 2021, New York (USA), July 25-29, 2021
• The 8th International Conference on eDemocracy & eGovernment ICEDEG 2018, Quito (Ecuador), 28-30 July, 2021.
• The 14th International Conference on Theory and Practice of Electronic Governance ICEGOV 2021, Athens, October 6-8, 2021 (Program and Steering Committees)
• 10th International Conference on Electronic Government and the Information Systems Perspective EGOVIS 2021, Linz (Austria) September 27–30, 2021
• The 22nd IFIP Working Conference on Virtual Enterprises  PRO-VE 2021, Saint Etienne (France), November 22-24, 2021
• The 28th International Conference on Systems Engineering ICSEng 2021, Wroclaw (Poland), December 14-16, 2021

• Central and Eastern European e|Dem and e|Gov Days CEEEGOV 2020, Budapest (Hungary), May 2-3, 
• The 11th International Conference on Advanced Doctoral Conference on Computing, Electrical and Industrial Systems DoCEIS 2020, Caparica (Portugal), July 1-3, 2020
• The 18th International Conference on e-Society 2020, Sofia (Bulgaria), April 2 - 4, 2020
• The 17th International Conference on e-Business ICE-B 2020, Online, July 8 - 10, 2020 
• The 7th International Conference on eDemocracy & eGovernment ICEDEG 2020, Buenos Aires (Argentina), April 22-24, 2020
• The 13th International Conference on Theory and Practice of Electronic Governance ICEGOV 2020, Athens, September 23-25, 2020 (Program and Steering Committees)
• The 21st IFIP Working Conference on Virtual Enterprises  PRO-VE 2020, Valencia (Spain), November 23-25, 2020
• The 12th International Conference on Advanced Service Computing SERVICE COMPUTATION 2020, Niece (France), October 25-29, 2020
• Web2Touch Conference Track @ 29th IEEE WETICE 2020 Conference, Bayonne (France), October 29, 2020
• 8th International Conference, WIS 2020, Turku (Finland), August 67-28, 2020,
• 9th International Conference on Electronic Government and the Information Systems Perspective EGOVIS 2020, Bratislava (Slovakia) September 14–17, 2020
• 7th International Conference on Serviceology ICServ2020, Osaka (Japan), March 13-15, 2020
• XV Congress of e-Economy (Kongres Gospodarki Elektronicznej), Warsaw (Poland), October 7 and 21, 2020
• The 7th International Conference on the Human Side of Service Engineering HSSE 2020, San Diego (USA) July 18-20, 2020

• The 40th International Conference on Information Systems Architecture and Technology ISAT 2019, Wrocław  (Poland), September 15-17, 2019 
• The 20th IFIP Working Conference on Virtual Enterprises PRO-VE 2019, Turin (Italy), September 23-25, 2019
• The 16th International Conference on e-Business ICE-B 2019, Prague (Czech Republic), July 26 - 28, 2019 
• Web2Touch Conference Track @ 28th IEEE WETICE 2019 Conference, Capri (Italy), June 12-14, 2019
• The 11th International Conference on Advanced Service Computing SERVICE COMPUTATION 2019, Venice (Italy), May 5-9, 2019
• The 10th International Conference on Advanced Doctoral Conference on Computing, Electrical and Industrial Systems DoCEIS 2019, Caparica (Portugal), May 8-10, 2019
• The 12th International Conference on Theory and Practice of Electronic Governance ICEGOV 2019, Melbourne, April 3-5, 2019 (Program and Steering Committees)
• 6th International Conference on eDemocracy & eGovernment ICEDEG 2019, Quito (Ecuador), April 24-26, 2019
• The 17th International Conference on e-Society 2019, Utrecht (The Netherlands), April 11 - 13, 2019
• National Symposium “Man - Media – Education”, Dabrowa Gornicza, September 27-28 2019
• 8th International Conference on Electronic Government and the Information Systems Perspective EGOVIS 2019, Linz (Austria) August 26–29, 2019
• XIV Congress of e-Economy (Kongres Gospodarki Elektronicznej), Warsaw (Poland), June 11, 2019

• Joint conference Service Science and Innovation (ICSSI2018) and Serviceology (ICServ2018), Taichung (Taiwan), November 13-15, 2018
• The 17th IFIP Conference on e-Business, e-Services and e-Society, Challenges and Opportunities in the Digital Era, I3E 2018, Kuwait, October 30 – 1 November 1, 2018
• International Conference on ICT Management for Global Competitiveness and Economic Growth in Emerging Economies ICTM 2018, Wroclaw (Poland) October 22-23, 2018
• 7th International Conference on Electronic Government and the Information Systems Perspective EGOVIS 2018, Regensburg (Germany) September 3–5, 2018
• The 39th International Conference on Information Systems Architecture and Technology ISAT 2018, Nysa (Poland), September 16-18, 2018 
• The 19th IFIP Working Conference on Virtual Enterprises  PRO-VE 2018, Cardiff (UK), September 17-19, 2018
• 7th International Conference, WIS 2018, Turku (Finland), August 27-29, 2018,
• The 15th International Conference on e-Business ICE-B 2018, Porto (Portugal), July 26 - 28
• 27th IEEE International Conference on Enabling Technologies: Infrastructure for Collaborative Enterprises WETICE-2018, Paris (France), June 27-29, 2018
• The 9th International Conference on Advanced Doctoral Conference on Computing, Electrical and Industrial Systems DoCEIS 2018, Caparica (Portugal), May 2-4, 2018
• 5th International Conference on eDemocracy & eGovernment ICEDEG 2018, Ambato (Ecuador), April 4-6, 2018
• The 16th International Conference on e-Society 2018, Lisbon (Portugal), April 14 - 16, 2018
• The 11th International Conference on Theory and Practice of Electronic Governance ICEGOV 2018, Galway, April 4-6, 2018 (Program and Steering Committees)
• The 10th International Conference on Advanced Service Computing SERVICE COMPUTATION 2018, Barcelona (Spain), February 18-22, 2018
• XIII Congress of e-Economy (Kongres Gospodarki Elektronicznej), Warsaw (Poland), June 7, 2018

• The 16th IFIP International Conference on e-Business, e-Services and e-Society I3E 2017, New Delhi (India), November 21 - 23, 2017
• The 16th IFIP International Conference on eGovernment EGOV 2017, Sankt Petersburg (Russia), September 4 - 7, 2017
• The 9th IFIP International Conference on eParticipation ePART 2017, Sankt Petersburg (Russia), September 4 - 7, 2017
• The 18th IFIP Working Conference on Virtual Enterprises  PRO-VE 2017, Vicenza (Italy), September 18 - 20, 2017
• The 38th International Conference on Information Systems Architecture and Technology ISAT 2017, Szklarska Poręba (Poland), September 17-19, 2017 
• 6th International Conference on Electronic Government and the Information Systems Perspective EGOVIS 2017, Lyon (France), August 28 - 31, 2017
• The 14th International Conference on e-Business ICE-B 2017, Madrid (Spain), July 24 – 26, 2017
• XII Congress of e-Economy (Kongres Gospodarki Elektronicznej), Warsaw (Poland), June 8, 2017
• The 8th International Conference on Advanced Doctoral Conference on Computing, Electrical and Industrial Systems DoCEIS 2017, Caparica (Portugal), May 3-5, 2017
• The 10th IADIS International Conference on Information Systems IS 2017, Budapest (Hungary), April 10 – 12, 2017
• The 15th International Conference on e-Society 2017, Budapest (Hungary), April 10 - 12, 2017
• The 10th International Conference on Theory and Practice of Electronic Governance ICEGOV 2017, New Delhi (India), March 7 - 9, 2017 (Program and Steering Committees)
• The 9th International Conference on Advanced Service Computing SERVICE COMPUTATION 2017, Athens (Greece), February 19 - 23, 2017

• The 37th International Conference on Information Systems Architecture and Technology ISAT 2016, Karpacz (Poland), September 18 - 20, 2016
• XI Congress of e-Economy (Kongres Gospodarki Elektronicznej), Warsaw (Poland), June 28, 2016
• The 5th International Conference on Electronic Government EGOVIS 2016, Porto (Portugal), September 5-8, 2016
• The 9th International Conferences on Theory and Practice of Electronic Governance ICEGOV 2016, Montevideo (Uruguay), March 1 - 3, 2016 (Steering Committee)
• The 4th International Conference on the Human Side of Service Engineering HSSE 2016, Orlando (Florida, USA), July 27 – 31, 2016
• The 6th International Conference Well-being in the Information Society WIS 2016 - Building Sustainable Health Ecosystems, Tampere (Finland), September 16 - 18, 2016
• The Dual 2016 IFIP EGOV-ePart Conference: 15th IFIP Electronic Government (EGOV) and 8th Electronic Participation (ePart) Conference 2016, Guimaraes (Portugal), September 5 - 8, 2016
• The 15th IFIP Conference on e-Business, e-Services and e-Society I3E 2016, Swansea, Wales, UK, September 13 - 15, 2016
• The 19th International Conference on Business Information Systems - BIS 2016, Leipzig (Germany), July 6-8, 2016
• The 14th IADIS International Conference on e-Society 2016, Algavre (Portugal), April 9 - 11, 2016
• The 13th International Conference on e-Business ICE-B 2016, Lisbon (Portugal), July 26 - 28, 2016
• The 7th International Conferences on Advanced Service Computing SERVICE COMPUTATION 2016, Rome (Italy), March 20 - 24, 2016 (under ComputationWorld 2016 umbrella)
• The 7th International Conference on Creative Content Technologies CONTENT 2016, Rome (Italy), March 20 - 24, 2016 (under ComputationWorld 2016 umbrella)
• The 7th Advanced Doctoral Conference on Computing, Electrical and Industrial Systems DoCEIS 2016, Caparica (Portugal), April 11 - 13, 2016
• e-Government Track at The 49th Hawaii International Conference on System Sciences HICSS 2016, Poipu, Kauai, HI/USA, January 5 - 8, 2016
• The 17th IFIP Working Conference on Virtual Enterprises PRO-VE 2016, Porto (Portugal), October 3 – 5, 2016
• The 4th International Conference on Serviceology ICServ 2016, Tokyo (Japan), September 6-8, 2016 

2015

• The 19th East-European Conference on Advances in Databases and
• Information ADBIS Systems, Poitiers (France), September 8-11, 2015
• National Conference „e-Administration form Business”, Warsaw (Poland), April 21 - 22, 2015
• The 14th Wuhan International Conference on E-Business WHICEB 2015, Wuhan (China), June 19 - 21, 2015
• The 3rd International conference on Serviceology ICServ 2015, San Jose (CA, USA), July 7 - 9, 2015 
• The 13th IADIS International Conference on e-Society ES 2015, Madeira (Portugal), March 14 - 16, 2015
• The 8th IADIS International Conference on Information Systems IS 2015, Madeira (Portugal), March 14 - 16, 2015
• The 15th Group Decision and Negotiation International Conference GDN 2015, Warsaw (Poland), June 22 - 26, 2015
• The 18th International Conference on Business Information Systems BIS 2015, Poznań (Poland), June 24 - 26, 2015
• The 6th  Doctoral Conference on Computing, Electrical and  Industrial Systems DoCEIS 2015, Costa Caparica, Lisbon (Portugal), June 24 - 26, 2015
• The 7th International Conferences on Advanced Service Computing SERVICE COMPUTATION 2015, Nice (France), March 22 - 27, 2015
• The 7th International Conference on Creative Content Technologies CONTENT 2015, Nice (France), March 22 - 27, 2015
• The 4th InternationaConference on Electronic Government and the Information Systems Perspective - EGOVIS '15, Valencia (Spain), September 1-3, 2015
• The 12th International Conference on e-Business ICE-B 2015 as a part of The 12th International Joint Conference on e-Business and Telecommunications ICET 2015, Colmar (France), July 20 - 22, 2015
• The 36th International Conference Information Systems Architecture and Technology ISAT 2015, Karpacz (Poland), September 20 - 22, 2015
• 16th IFIP Working Conference on Virtual Enterprises PRO-VE'15, Albi (France), October 5-7, 20015 
• X Congress of e-Economy (Kongres Gospodarki Elektronicznej), Warsaw (Poland), May 21, 2015

• The 13th IFIP Electronic Government Conference EGOV 2014, Dublin (Ireland), September 1 - 4, 2014 
• The 5th International Conference Well-being in the Information Society WIS 2014, Turku (Finland), August 18 - 20, 2014
• The 3rd International Conference on Electronic Government and the Information Systems Perspective EGOVIS 2014, in conjunction with DEXA 2014, Munich (Germany), September 1-5, 2014
• The 25th International Conference on Database and Expert Systems Applications DEXA 2014, Munich (Germany), September 1-5, 2014
• The 6th International Conference on Creative Content Technologies CONTENT 2014, Venice (Italy), May 25 - 29, 2014
• The 6th International Conference on Advanced Service Computing SERVICE COMPUTATION 2014, Venice (Italy), May 25 - 29, 2014
• The 15th IFIP Working Conference on Virtual Entreprise PRO-VE 2014, Amsterdam (Netherlands), October 6 - 8, 2014
• The 17th International Conference on Business Information Systems BIS 2014, Larnaca (Cyprus), May 21-23, 2014
• The 18th East-European Conference on Advances in Databases and Information Systems ADBIS 2014, Ohrid (Macedonia), September 7 - 10, 2014
• The 14th National Conference „Virtual University - model, tools, practice”, Warsaw, June  25 - 27, 2014
• The 11th International Conference on e-Business ICE-B 2014 as a part of The 11th International Joint Conference on e-Business and Telecommunications ICET 2014, Vienna (Austria), September 2 - 4, 2014
• The 7th IADIS International Conference on Information Systems IS 2014, Madrid (Spain), 28 February – 2 March, 2014 
• The 9th International Conference on Evaluation of Novel Approaches to Software Engineering ENASE 2014, Lisbon (Portugal), April 27 - 29, 2014 
• The 5th Doctoral Conference on Computing, Electrical and Industrial Systems DoCEIS 2014, Costa Caparica (Portugal), April 7 - 9, 2014
• The 11th IADIS International Conference on e-Society, Madrid (Spain), February 28 – March 2, 2014
• The 8th International Conference on Theory and Practice of Electronic Governance ICEGOV2014, Guimaraes (Portugal), October 27 – 30, 2014
• The 35nd International Conference on Information Systems Architecture and Technology ISAT’14, Szklarska Poręba (Poland), September 21 - 23, 2014
• IX Congress of e-Economy (Kongres Gospodarki Elektronicznej), Warsaw (Poland), June 12, 2014

• National Conference „e-Administration for Business”, Poznań (Poland), November 6 - 8, 2013
• The 34th International Conference Information Systems Architecture and Technology ISAT 2013, Szklarska Poręba (Poland), September 23 - 24, 2013
• The 14th IFIP Working Conference on Virtual Entreprise PRO-VE 2013, Dresden (Germany), September 30 - October 2, 2013
• The 35th International Conference on Data Protection and Privacy Commissioners, Warsaw (Poland), September 23-26, 2013
• The 2nd International Conference on ICT Management for Global Competitiveness and Economic Growth in Emerging Economies, Wroclaw (Poland), September 16-17, 2013
• European Conference on Service-oriented and Cloud Computing ESOCC 2013, Malaga (Spain), September 11 - 13, 2013
• The 2013 World Conference on Information Systems and Technologies WorldCIST'13, Algavre (Portugal), March 27 - 30, 2013
• The 2nd Joint EGOVIS & EDEM 2013 Conference “Advancing Democracy, Government and Governance”in conjunction with DEXA, Prague (Czech Republic), August 26-29, 2013 
• The 13th National Conference „Virtual University - model, tools, practice”, Warsaw, June 19 - 21, 2013
• The 24th International Conference on Database and Expert Systems Applications DEXA 2013, Prague (Czech Republic), August 26-30, 2013
• The 6th IADIS International Conference Information Systems 2013, Lisbon (Portugal), March 13 - 15, 2013
• The 12th Wuhan International Conference on E-Business (An AIS Affiliated Conference) WHICEB 2013, Wuhan (China), May 25-26, 2013
• The 17th East-European Conference on Advances in Databases and Information Systems ADBIS 2013, Genova (Italy), September 1- 4, 2013
• The 10th International Conference on e-Business ICE-B 2013,Reykjavik (Iceland), July 29 - 31, 2013
• The 8th International Conference on Evaluation of Novel Approaches to Software Engineering ENASE 2013, Angers (France), July 3 - 7, 2013
• The 11th IADIS International Conference on e-Society, Lisbon (Portugal), March 13 - 16, 2013
• The 2013 World Conference on Information Systems and Technologies WorldCIST 2013, Olhão, Algarve (Portugal), March 27 - 30, 2013
• The 16th International Conference on Business Information Systems BIS 2013, Poznan (Poland), June 19-21, 2013
• The 3rd Doctoral Conference on Computing, Electrical and Industrial
• Systems DOCEIS 2013, C. Caparica, Portugal, April 15-17, 2013
• HICSS mini-track on Education, Training and Professionalization, part of e-Government Track at the 46th Hawaii International Conference on System Sciences, Hawaii, 7-10 January 2013. 
• VIII Congress of e-Economy (Kongres Gospodarki Elektronicznej), Warsaw (Poland), June 18, 2013

• The 4th FTRA International Conference on Information Technology Convergence and Services ITCS 2012, Yantai (China), August 23-25, 2012
• The 7th International Conference on Interactive Mobile and Computer Aided Learning IMCL 2012, Amman (Jordan), November 6-7, 2012
• The 13th International Conference on Web Information System Engineering WISE 2012, Paphos (Cyprus), November 14-16, 2012
• The 4rd International Conference “Well-being in the Information Society - Exploring the Abyss of Inequalities”WIS 2012, Turku (Finland), August 22-24, 2012
• The 13th IFIP Working Conference on Virtual Enterprises PRO-VE 2012, Bournemouth (UK), October 1 - 3, 2012.
• The 24th International Conference on Advanced Information Systems Engineering CAISE'12, Gdańsk (Poland), June 25 - 29, 2012
• International Conference on Electronic Government and the Information Systems Perspective and International Conference on Electronic DemocracyJoint EGOVIS & EDEM 2012 Conference “Advancing Democracy, Government and Governance”, Vienna (Austria), September 3 - 7, 2012
• The 23rd International Conference on Database and Expert Systems Applications -DEXA 2012, Vienna (Austria), September 3 - 7, 2012
• The 15th International Conference on Business Information Systems BIS 2012, Vilnius (Lithuania), May 21-23, 2012
• The International Conference on e-Business ICE-B 2012, Rome (Italy), July 24 - 27, 2012
• The 6th Euro American Conference on Telematics and Information Systems EATIS 2012, Valencia (Spain), May 23 - 25, 2012
• The 14th IEEE International Conference on Commerce and Enterprise Computing CEC 2012, Hangzhou, China, September 9-11, 2012
• International Conference on E-Business Technology and Strategy ICETS 2012, Tianjin (China), August 29 - 31, 2012
• The 12th Wuhan International Conference on E-Business, Wuhan (China), May 26 – 27, 2012
• The 6th International Conference on Theory and Practice of Electronic Governance ICEGOV2012, Albany (New York, USA), October 22 – 25, 2012
• IADIS International Conference E-Society 2012, Berlin (Germany), March 10-13, 2012
• The 16th East - European Conference on Advances in Databases and Information Systems ADBIS 2012, Poznań (Poland), September 18 - 21, 2012
• The 7th International Conference on Systems ICONS 2012, Reunion Island, February 29 - March 5, 2012
• The 7th International Conference on Evaluation of Novel Approaches to Software Engineering ENASE 2012, Wrocław (Poland), June 28 - July 1, 2012
• The 3rd Doctoral Conference on Computing, Electrical and Industrial Systems DOCEIS 2012, Costa da Caparica (Portugal), February 27-29, 2012
• The 33th International Conference on Information Systems Architecture and Technology ISAT 2012, Szklarska Poreba (Poland), September 16-18, 2012
• VII Congress of e-Economy (Kongres Gospodarki Elektronicznej), Warsaw (Poland), October 16, 2012

• The 34th Information Systems Research Seminar in Scandinavia IRIS'11, Turku (Finland), August 16 - 19, 2011
• The 12th Web Information System Engineering Conference WISE'11, Sydney (Australia), October 13 - 15, 2011.
• The 32nd International Conference on Information Systems Architecture and Technology ISAT’11, Szklarska Poręba (Poland), September 18 - 20, 2011
• Workshop on Formal Aspects of Virtual Organizations FAVO’11, Sao Paulo (Brazil), 17 – 19 October 2011
• The 5th International Conference on Theory and Practice of Electronic Governance ICEGOV2011, Tallinn (Estonia), September 26-28, 2011 (Steering Committee)
• The 12th IFIP Working Conference on Virtual Enterprises PRO-VE 2011, Sao Paulo (Brazil), October 17 - 19, 2011
• The 11th IFIP Conference on e-Business, e-Services, e-Society i3E 2011, Kaunas (Lithuania), October 12-14, 2011
• The 11th Conference „Virtual University”, Warsaw (Poland), June 20-22, 2011
• Special Track on Cloud Computing for Public Sector (CCPS 2011) at the 1st International Conference on ICT as Key Technology for the Fight against Global Warming ICT-GLOW 2011, Toulouse (France) August 29 - September 2, 2011
• The 2nd InternationaConference on Electronic Government and the Information Systems Perspective - EGOVIS '11, Toulouse (France), August 29 - September 2, 2011
• BIT's 1st Annual Congress of u-World “New Dimension of the Smart Planet in U-Era”, Dalian, China, October 23-25, 2011
• The 2011 International Workshop on IT Converged Services and Applications ITCSA 2011, Taipei, Taiwan, September 13-16, 2011
• The 15th East - European Conference on Advances in Databases and Information Systems ADBIS 2011, Vienna (Austria), September 19-23, 2011
• The 13th IEEE Conference on Commerce and Enterprise Computing, Luxembourg, September 5-7, 2011
• The 6th International Conference on e-Business ICE-B 2011, Seville (Spain), July 18-21, 2011
• The 10th Wuhan International Conference on E-Business, Wuhan (China), May 28-29, 2011
• The 6th International Conference on Evaluation of Novel Approaches to Software Engineering ENASE 2011, Beijing (China), June 8 - 11, 2011
• The First International Conference on Advanced Communications and Computation INFOCOMP 2011, Bournemouth (UK), July 17-22, 2011
• The Sixth International Conference on Availability, Reliability and Security (“ARES – The International Dependability Conference”) ARES 2011, Vienna (Austria), August 22-26, 2011
• The 3rd IADIS International Conference on e-Society 2011, Avila (Spain), March 10-13, 2011
• The 14th International Conference on Business Information Systems BIS 2011, Poznań, May, 5-7 2011
• The 2nd Doctoral Conference on Computing, Electrical and Industrial Systems DOCEIS 2011, Costa da Caparica (Portugal), February 21-22, 2011
• VI Congress of e-Economy (Kongres Gospodarki Elektronicznej), Warsaw (Poland), June 2, 2011

• The 4th International Conference on Theory and Practice of Electronic Governance ICEGOC 2010, Beijing, China, 25-28 October 2010
• The 2nd International Conference on Information Technology Convergence and Services ITCS 2010, Cebu, Philippines, August 11-13, 2010
• The 10th National Conference „Virtual University - model, tools, practice”, Warsaw (Poland), June 16-18, 2010
• The 5th International Conference on e-Business ICE-B 2010, Athens (Greece), July 26-28, 2010
• The 9th IFIP International Conference on Information Technology for BALANCED AUTOMATION SYSTEMS BASYS 2010, Valencia (Spain), June 21-23, 2010
• The 11th IFIP Working Conference on Virtual Enterprises PRO-VE 2010, St. Etienne (France), October 11-13, 2010
• Well-being in the Information Society (WIS 2010) - Navigating the Fragmented Innovation Landscape, Turku (Finland), August 18-19, 2010
• The 13th International Conference on Business Information Systems BIS 2010, Berlin (Germany), 3-5 May, 2010
• The 7th Pan-Hellenic Conference with International Participation „Information and Communication Technologies in Education”HCICTE10, Korinthos (Greece), 23-26 September, 2010
• The 5th Conference of the Euro - American Association on Telematics and Information Systems EATIS 2010, Panama City (Panama), 22-24 September, 2010
• The 5th International Conference on Evaluation of Novel Approaches to Software Engineering ENASE 2010, Athens (Greece), 22-24 July, 2010
• European University Information Systems EUNICE 2010, Warszawa, 23-25 czerwca 2010
• IADIS International Conference e-Society 2010, (Porto, Portugal) March 18-21, 2010
• IASTED International Conference on Internet and Multimedia Systems and Applications AfricaIMSA 2010, Sharm El Sheikh (Egypt), March 15-17, 2010
• Doctoral Conference on Computing, Electrical and Industrial Systems DoCEIS 2010, February 22-24, 2010, Costa da Caparica (Portugal)
• The 6th International Conference on Distributed Computing and Internet Technologies ICDCIT 2010, Bhubaneswar, India, 15-17 February 2010
• The 20th International Conference on Database and Expert Systems Applications DEXA 2010, Bilbao (Spain), August 30-September 3, 2010
• The 4th International Conferences on Theory and Practice of Electronic Governance ICEGOV 2010, Beijing (China), October 25 - 28, 2010
• The 31th International Conference on Information Systems Architecture and Technology ISAT 2010, Szklarska Poreba (Poland), September 19-21, 2010
• V Congress of e-Economy (Kongres Gospodarki Elektronicznej), Warsaw (Poland), May 28, 2010

• International Conference on Information, Communication and E-business Engineering InCEBE 2009, Kathmandu (Nepal), November 29-30, 2009
• Konferencja krajowa “Internet przyszłością handlu – eBiznes 2009”, Poznań, 4-5 listopada 2009
• The 30th International Conference on Information Systems Architecture and Technology - Concepts, Tools and Applications ISAT 2009, Szklarska Poreba (Poland), September 20-21, 2009
• IV Congress of e-Economy (Kongres Gospodarki Elektronicznej), Warsaw (Poland), May 21, 2009
• International Conference on Principles of Information Technology and Applications PITA'09, in conjunction with Multiconference on Computer Science and Information Technology IMCSIT 2009, Mragowo (Poland), October 12-14, 2009 
• The 10th IFIP Working Conference on Virtual Enterprises PRO-VE 2009, Thessaloniki, Greece, October 7-9, 2009
• International Multiconference on Computer Science and Information Technology IMCIT 2009 incorporating International Workshop on Business Intelligence, Mrągowo (Poland), October 12-14, 2009
• The Euro American Conference on Telematics and Information Systems EATIS 2009, Prague (Czech Republic), June 3-5, 2009 
• IX Konferencja „Uniwersytet Wirtualny - model, narzędzia, praktyka”, Warszawa, 17-19 czerwca 2009
• The 5th International Workshop on Distributed Cooperative Laboratories - Instrumenting the Grid INGRID 2009, Alghero, Sardinia, Italy, April 1-3, 2009
• The IASTED International Conference on Internet and Multimedia Systems and Applications EuroIMSA 2009, Cambridge, United Kingdom from July 13, 2009 to July 15, 2009.
• The Atlantic Web Intelligence Conference AWIC 2009, September 9-11, 2009, Prague, Czech Republic
• International Conference on e-Business ICE-B 2009, in conjunction with the International Joint Conference on e-Business and Telecommunications ICETE 2009, Milan (Italy), July 7-10, 2009
• Workshop on Formal Aspects of Virtual Organizations FAVO’09 with conjunction of the 16th International Symposium on Formal Methods FM’09, Eindhoven, the Netherlands, November 2 - November 6, 2009
• The 7th IADIS International Conference e-Society 2009, Barcelona, Spain, 25 - 28 February 2009
• The 8th Wuhan International Conference on E-Business WHICEB 2009, Wuhan, China, May 30-31, 2009
• The 19th International Conference on Database and Expert Systems Applications DEXA 2009, Linz (Austria), August 31 – September 4, 2009
• The 12th International Conference on Business Information Systems - BIS 2009, Poznan (Poland), April 27-29, 2009
• The 3rd International Workshop on Intelligent Vehicular Communication Systems IVCS’09 co-located with IEEE CCNC, Las Vegas, January 2009, General Vice Chair.
• The 4th International Conference on Evaluation of Novel Approaches to Software Engineering ENASE 2009, Milan (Italy), May 6-10, 2009
• VII Krajowa Konferencja Naukowa „Inżynieria wiedzy i systemy ekspertowe”, Wrocław, 23 - 25 czerwca 2009
• The 4th International Conference on Digital Telecommunications ICDT 2009, Colmar, France, July 19-24, 2009
• The 3rd International Conferences on Theory and Practice of Electronic Governance ICEGOV 2009, Bogota (Colombia), November 10 - 13, 2009

• The 7th International Conference „e-Learning - Theory and Practice”, Torun (Poland), May 19 - 20, 2008
• The 3rd International Conference on Digital Interactive Media in Entertainment and Arts DIMEA 2008, Athens (Greece), September 10-12,2008
• The 29th International Conference on Information Systems Architecture and Technology - Concepts, Tools and Applications ISAT 2008, Szklarska Poreba (Poland), September 21-23, 2008
• The 2nd International Conference on Theory and Practice of Electronic Governance ICEGOV 2008, Cairo (Egypt), December 1-4, 2008
• The 16th National Conference on Electronic Data Interchange and Electronic Commerce EDI-EC 2008, Lodz, June 10-11, 2008
• The 3rd Congress on Electronic Economy, Warsaw (Poland), May 19, 2008
• The 8th International Multidisciplinary Conference on e-Commerce and e-Government ECOM&EGOV'08, Wisla (Poland), October 20-22, 2008
• The International Conference on e-Business ICE-B in conjunction of The International Joint Conference on e-Business and Telecommunications, Porto (Portugal), July 26-29, 2008
• Workshop on Formal Aspects of Virtual Organizations FAVO 2008 with conjunction of the 15th International Symposium on Formal Methods FM 2008, Turku (Finland), May 26 - 30, 2008
• The 20th International Conference on Advanced Information Systems Engineering CAISE 2008, Montpellier (France), June 16-20, 2008
• The Euro-American Conference on Telematics and Information Systems EATIS 2008, Aracaju (Brazil), September 10-12, 2008
• The International Conference on Electronic Commerce and Web Technologies EC-Web 2008, in conjunction with DEXA 2008, Turin (Italy), September 1-5, 2008
• The 9th IFIP Working Conference on Virtual Enterprises PRO-VE 2008, Poznań (Poland), September 8-10, 2008
• The 6th International Workshop on Technical, Economic and Legal Aspects of Business Models for Virtual Goods, Poznań, October 16 - 18, 2008
• The 7th Wuhan International Conference on E-Business WHICEB 2008, Wuhan (China) May 31-June 1, 2008
• The 3rd International Conference on Digital Telecommunications ICDT 2008, Bucharest (Romania), June 29 - July 5, 2008
• The 6th IADIS International Conference e-Society 2008, Algavre (Portugal), April 9-12th, 2008
• The 5th International Conference on Service Systems and Service Management ICSSSM 2008 - Exploring Service Dynamics with Science and Innovative Technology, 30 June - 2 July 2008, Melbourne (Australia)
• IASTED International Conference on Internet and Multimedia Systems and Applications EuroIMSA 2008, Innsbruck, Austria, March 17-19, 2008
• The 11th International Conference on Business Information Systems BIS 2008, Insbruck, Austria, May 5-7, 2008
• III Congress of e-Economy (Kongres Gospodarki Elektronicznej), Warsaw (Poland), May 19, 2008

• 18th International Conference on Database and Expert Systems Applications DEXA 2007, Regensburg (Germany), September 2007
• The 7th IFIP Conference on e-Business, e-Services and e-Society I3E 2007, Wuhan, China, October 10-12, 2007 
• International Conference on Information Resources Management Association IRMA 2007, Vancouver, Canada during May 19-23, 2007.
• Member of the Honour Committee of the World Information Society Day, Warsaw, May 16-18, 2007 
• Program Committee (IPC) for the IASTED International Conference on Internet and Multimedia Systems and Applications (EuroIMSA 2007), Chamonix, France, March 14-16, 2007. 
• The 10th International Conference on Business Information Systems BIS'2007, Poznan (Poland), April 2007
• The International Conference on Electronic Commerce and Web Technologies EC-WEB’2007, Regensburg, Germany, September 3-7, 2007
• Krajowa Konferencja Naukowa Modelowanie i programowanie zrównoważonego rozwoju regionów, AEP, Poznań, ostatni kwartał 2007 (Emil Panek)
• International Multiconference on Computer Science and Information Technology IMCSIT’2007, sub-conference International Conference on Principles of Information Technology and Applications PITA'2007 Wisla (Poland), October 15-17, 2007
• 5th International Workshop for Technical, Economic and Legal Aspects of Business Models for Virtual Goods, Koblenz (Germany), October 11 – 13, 2007
• Konferencja Wirtualny Uniwersytet, Warszawa, 22 lutego 2007
• Euro-American Conference on Telematics and Information Systems EATIS 2007,, Algarve, Faro (Portugal), May 14–17th 2007
• XV Konferencja Elektroniczna Gospodarce - Electronic Data Interchange (EDI) and Electronic Commerce (EC), Łódź, 18-19 czerwca 2007
• The Second International Conference on Digital Telecommunications ICDT 2007, July 1-6, 2007 - Silicon Valley, USA
• The 28th International Conference on Information Systems Architecture and Technology – Concepts, Tools and Applications ISAT 2007, Szklarska Poręba (Polska), 20 – 21 września 2007
• The International Conference on Theory and Practice of Electronic Governance ICEGOV 2007, Macao, 10-13 December 2007. 
• International Workshop on Governance, Risk and Compliance in Web Information Systems in conjunction with 8th International Conference on Web Information Systems Engineering WISE 2007, December 3-7, 2007, Nancy (France)
• 8th IFIP Working Conference on Virtual Enterprises PRO-VE'07, Guimaraes (Portugal), September 10-12, 2007 

2006

• The 7th International Conference on Web Information Systems Engineering WISE’ 2006, Wuhan (China), October 23~26, 2006.
• 1st International Multiconference on Computer Science and Information Systems, Wisla (Poland), 6-10 November, 2006
• 7th IFIP Working Conference on Virtual Enterprises PRO-VE'06, Helsinki (Finland), 25-27 September, 2006 
• 7th International Conference on Electronic Commerce and Web Technologies EC-WEB 2006, Krakow, Poland, September 5-8, 2006 
• The 7th IFIP International Conference on Information Technology for Balanced Automation Systems in Manufacturing and Services BASYS'06, Niagara Falls, Ontario, Canada on September 4-6, 2006 
• 17th International Conference on Database and Expert Systems Applications DEXA, Krakow, Poland, September 4-8, 2006 
• The 4th IADIS International Conference e-Society 2006, Dublin, Ireland, 13-16 July, 2006 
• The 7th International Conference on Web-Age Information Management WAIM’06, Hong Kong, China, June 17-19, 2006 
• 16th Information Resources Management Association (IRMA) International Conference 2006, San Diego, California (USA), May 2006 
• IASTED International Conference on Internet and Multimedia Systems and Applications EuroIMSA 2006, Innsbruck, Austria, February 13-15, 2006. 
• Euro American Conference on Telematics and Information Systems Accessibility and Internationalization of Web-based Information Systems EACTIS, Santa Martha Colombia (South America), February 7-10, 2006 
• 8th Asia Pacific Web Conference APWeb 2006, Harbin (China), 16-18 January 2006 
• 6th International Symposium on Applications and the Internet SAINT 2006, Phoenix, Arizona (USA), January 2006 - International Liaison Chair 
• International Conference on Information Systems Architecture and Technology ISAT 2006, Szklarska Poreba (Poland), September 14-16, 2006

• 6th International Conference on Web Information Systems WISE 2005, New York City (USA), November 2005 
• General Co-Chair of the IFIP International Conference on e-Commerce, a-Business and e-Government i3E 2005, Poznan (Poland), October 2005 
• The First IFIP International Conference in Central Asia on Internet ICI 2005 - The Next Generation of Mobile, Wireless and Optical Communications Networks, Information and Communications Technologies and Application to E-and M-Commerce, Bishkek, Kyrgyzstan, September 26-29, 2005 
• European Conference on Information Technology Evaluation ECITE 2005, Turku (Finland), September 2005 
• IFIP Working Conference on Virtual Enterprises PRO-VE 2005, Valencia (Spain), September 2005 
• 9th East-European Conference on Advances in Databases and Information Systems ADBIS 2005, Tallinn (Estonia), September 2005. 
• 6th International Conference on Electronic Commerce and Web Technologies EC-WEB 2005, Copenhagen (Denmark), August 2005. 
• IADIS e-Society 2005 Conference, Qawra - Malta, 27 - 30 June 2005 
• 13th Conference on Electronic Data Interchange - Electronic Commerce EDI - EC 2005, Łódź-Dobieszków, June 200 
• The 25th International Conference on Distributed Computing Systems ICDCS 2005, Columbus, Ohio (USA), June 6-9, 2005 - International Liaison Chair 
• International Conference on Business Information Systems BIS 2005, Poznan, April 2005 
• Asia Pacific Web 2005, Shanghai (China), March-April, 2005 
• IASTED International Conference on Internet and Multimedia Systems and Applications EuroIMSA 2005, Grindelwald (Switzerland), February 21-23,2005 
• 1st International Conference on Interoperability of Enterprise Software and Applications INTEROP-ESA 2005, Geneva (Switzerland), February 2005 
• General Co-Chair of the 5th International Symposium on Applications and the Internet SAINT 2005, Trento (Italy), January - February 2005 

• International Conference “Multi-platform e-Publishing 2004”, Athens (Greece), October 2004
• 25th International Scientific School on Information Systems Architecture and Technology ISAT 2004, Szklarska Poreba, September 2004
• XX National Symposium on Telecommunications, Bydgoszcz (Poland), September 2004 
• 6th IFIP International Conference on Information Technology for Balanced Automation Systems in Manufacturing and Services BASYS 2004, Vienna (Austria), September 2004
• 5th International Conference on Electronic Commerce and Web Technologies EC-WEB 2004, Zaragoza (Spain), August 30 - September 3, 2004
• IFIP Conference on E-Commerce, E-business and E-Government I3E 2004, Toulouse (France), August 2004
• Database and Expert Systems Applications DEXA 2004, Zaragoza (Spain), August 30 - September 03, 2004
• IADIS International Conference on E-Society, Spain, July 2004
• 10 th International Conference on Parallel and Distributed Systems ICPADS 2004, Newport Beach, CA (USA), July 2004
• The Sixth Asia Pacific Web Conference APWeb 2004, Hangzhou (China), 14-17 April, 2004.
• 9th International Conference on Extending Database Technology EDBT 2004, Heraklion (Greece), March 2004

• 3rd IFIP Conference on e-Commerce, e-Business, and e-Government I3E 2003, Sao Paulo (Brazil), October 2003
• 12th International Conference and Workshop on Database and Expert Systems Applications DEXA'2003, Prague (Czech Republic), September 2003
• International Conference on Information Systems Architecture and Technology ISAT 2003, Szklarska Poreba (Poland), September 2003
• Electronic Commerce and Web Technologies EC-WEB 2003 Conference, Prague (Czech Republic), September 2003
• International Conference on Very Large Data Bases VLDB 2003, Berlin (Germany), September 2003
• IADIS International Conference e-Society 2003, Lisbon (Portugal), June 2003
• Information Retrieval and Filtering (IRaF), special session in conjunction with the 6th International Conference on Business Information Systems BIS' 2003, Colorado Springs (USA), June 2003.
• International Conference on Electronic Data Interchange EDI EC'2003, Dobieszków (Poland), June 2003
• 5th Asia Pacific Web Conference 2003, Xi'an (China), April 2003

• 2nd IFIP Conference on e-Commerce, e-Business and e-Government I3E'2002, Lisboa (Portugal), October, 2002
• 1st EurAsian Conference on Advances in Information and Communication
• Technology EURASIA-ICT'2002, Teheran (Iran), October 2002
• IEEE/ECLA/IFIP International Conference on Architectures and Design Methods for Balanced Automation Systems BASYS'2002, Cancun (Mexico), September 2002
• 12th International Conference and Workshop on Database and Expert Systems Applications DEXA'2002, Aix-en-Provence (France), September 2002
• 6th East-European Conference on Advances in Databases and Information Systems ADBIS'2002, Bratislava (Slovakia), September 2002
• International Conference on Electronic Data Interchange EDI-EC'2002, Lodz (Poland), June 2002
• 4th International Workshop on Enterprise Networking and Computing in Health Care Industry HEALTHCOM'2002, Nancy (France), June 2002
• International Conference on Business Information Systems BIS'2002, Poznan (Poland), April 2002
• International Conference on Extending Database Technology EDBT'2002, Prague (Czech Republic), March 2002
• International Conference on Research Issues in Data Engineering RIDE'2002, San Jose (USA), February 2002
• International Symposium on Applications and the Internet SAINT'2002, Nara (Japan), January - February 2002
• 35th HAWAII International Conference on System Sciences, Maui (Hawaii), January 2002
• International Conference on Infrastructure for e-Business, e-Education, e-Science, and e-Medicine on the Internet SSGRR-2002 Winter, Scuola Superiore G. Reiss Romoli, L'Aquila (Italy), January 2002

• 1st IFIP Conference on E-Commerce, E-Business, and E-Government (IFIP I3E-conference), Zurich (Switzerland), October 2001
• 2nd Conference on Electronic Commerce and Web Technologies ECWEB'2001, Munich (Germany), September 2001
• 12th International Conference and Workshop on Database and Expert Systems Applications DEXA'2001, Munich (Germany), September 2001
• 3rd IFIP WG 6.1 International Working Conference on Distributed Applications and Interoperable Systems DAIS'2001, Cracow (Poland), September, 2001
• International Scientific School “Information Systems Architecture and Technology”ISAT’2001, Szklarska Poreba (Poland), September 2001
• East-European Conference on Advances in Databases and Information Systems ADBIS’2001, Vilnius (Lithuania), September 2001
• 9th National Conference on Electronic Data Interchange and e-Commerce EDI-EC'2001, Dobieszkow, (Poland), June 2001
• Polish Congress of Logistics, Warsaw (Poland), June 2001
• Cooperative Database Systems for Advanced Applications CODAS'2001, Beijing (China) April 2001
• International Conference on Data Engineering ICDE'2001, Heidelberg (Germany), April 2001
• The International Conference on Very Large Data Bases VLDB'2001, Rome (Italy), April 2001
• Electronic Business track at the Symposium on the Applications and the Internet SAINT'2001, San Diego (USA), January 2001
• 34th Hawaii International Conference on System Sciences, Maui (Hawaii), January 2001

• 1st Conference on Electronic Commerce and Web Technologies EC-Web'2000, London - Greenwich (UK), September 2000 
• International Workshop on e-Negotiations accompanying 11th International Conference on Database and Expert Systems Applications DEXA'2000,
• Greenwich (United Kingdom), September 2000 
• International Conference on Very Large Data Bases VLDB'2000, Cairo, Egypt, September 2000 
• IEEE/ECLA International Conferences on Architectures and Design Methods for Balanced Automation Systems BASYS'2000, Berlin (Germany), September 2000 
• East-European Symposium on Advances in Databases and Information Systems ADBIS'2000, Prague (Czech Republic), September 2000 
• Polish Logistic Congress, Poznan (Poland), June 2000 
• 10th International Database Symposium on Mobile, XML and Post-Relational Databases, IDS'2000, Kowloon Shangri-La, Hong Kong, June 2000 
• National Conferences on Electronic Data Interchange and Electronic Commerce, EDI-EC'2000, Lodz (Poland), June 2000 
• 1st International Conference on Web Information Systems Engineering WISE'2000, Hong Kong, June, 2000 
• International Conference on E-commerce in Transport, Tourism, and Recreation TRATORE'2000, Durban, South Africa, May 2000 
• International Conferences on Business Information Systems BIS'2000, Poznan (Poland), April 2000 
• International Conference on Data Engineering ICDE'2000, San Diego (USA), February - March 2000 
• 33th International Conference on Systems Sciences HICSS'2000, Maui, Hawaii, January 2000

• 1st Conference on Electronic Commerce and Web Technologies EC-Web'2000, London - Greenwich (UK), September 2000
• International Conference on Database and Expert Systems Applications DEXA'99, Florence (Italy), September 1999
• East-European Symposium on Advances in Databases and Information Systems ADBIS'99, Maribor (Slovenia), September 1999
• Workshop on Information Technologies for Electronic Commerce ITeC'99, Florence (Italy), September 1999
• National Conferences on Electronic Data Interchange and Electronic Commerce, EDI-EC'99, Lodz (Poland), June 1999
• 17th International Conference INFORSID'99, La Garde (France), June 1999
• International Conferences on Business Information Systems BIS'99, Poznan (Poland), April 1999
• International Symposium on Cooperative Database Systems for Advanced Applications CODAS'99, Wollongong (Australia), March 1999

• East-European Symposium on Advances in Databases and Information Systems ADBIS'98, Poznan (Poland), September 1998
• International Conferences on Database and Expert Systems Applications DEXA'98, Wien (Austria), August 1998
• IEEE/ECLA International Conferences on Architectures and Design Methods for Balanced Automation Systems BASYS'98, Prague (Czech Republic), August 1998
• International Conference on Electronic Commerce EC'98, Hamburg (Germany), June 1998
• International Conferences on Business Information Systems BIS'98, Poznan (Poland), April 1998

• International Conferences on Database and Expert Systems Applications DEXA'97, Toulouse (France), September 1997
• International Conferences on Business Information Systems BIS'97, Poznan (Poland), September 1997

• Conference on Integration of Telecommunications and Cable Television - Interactive Television, Warsaw (Poland), October 1996
• National Telecommunications Symposium KST'96, Bydgoszcz (Poland), September 1996
• International Conferences on Database and Expert Systems Applications DEXA'96, Zurich (Switzerland), September 1996
• IEEE/ECLA International Conferences on Architectures and Design Methods for Balanced Automation Systems BASYS'96, Lisbon (Portugal), June 1996
• 8th International Conference on Software Engineering and Knowledge Engineering SEKE'96, Lake Tahoe (USA), June 1996

• International Conferences on Database and Expert Systems Applications DEXA'95, London (UK), September 1995
• National Telecommunications Symposium KST'95, Bydgoszcz (Poland), September 1995
• International Conference on Advanced Databases, Nancy (France), August 1995
• 7th International Conference on Computing and Information, ICCI'95, Trent, Ontario (Canada), July 1995
• IEEE/ECLA International Conferences on Architectures and Design Methods for Balanced Automation Systems BASYS'95, Victoria (Brazil), July 1995
• 15th International Symposium on Protocol Specification, Testing and Verification, PSTV'95, Warsaw (Poland), June 1995
• Colloquium Francophone sur l'Ingénierie des Protocols CFIP'95, Rennes (France), May 1995
• 2nd International Symposium on Autonomous Decentralized Systems, ISADS'95, Phoenix, Arizona (US), April 1995

• 18th Annual International Computer Software and Applications Conference COMPSAC'94, Taipei (Taiwan), November 1994
• International Conferences on Database and Expert Systems Applications DEXA'94, Athens (Greece), September 1994
• National Telecommunications Symposium KST'94, Bydgoszcz (Poland), September 1994
• International Conference on Distributed Computing Systems ICDCS '94, Poznan (Poland), June 1994

• National Conference on Information Technologies for Science, Cracow (Poland), December 1993
• International Conference SAFECOMP'93, Pozna? (Poland), October 1993
• International Conferences on Database and Expert Systems Applications DEXA'93, Prague (Czech Republic), September 1993
• International Conference on Distributed Computing Systems ICDCS '93 Pittsburgh (USA), May 1993
• International Workshop on Versioning in Database Management Systems, Dagstuhl (Germany), February 1993
• German-Polish-French Workshop on Recent Topics in Databases, Rauischholzhausen (Germany), January 1993

• International Conferences on Database and Expert Systems Applications DEXA'92, Barcelona (Spain), September 1992
• International Conference on Distributed Computing Systems ICDCS '92, Yokohama (Japan), June 1992
• German-Polish-French Workshop on Databases and Distributed Systems, Rauischholzhausen (Germany), January 1992

• International Conferences on Database and Expert Systems Applications DEXA'91, Berlin (Germany), September 1991

• International Conferences on Database and Expert Systems Applications DEXA'90, Wien (Austria), August 1990