@ { , title = {E-Government Based on Cloud Computing and Service-Oriented Architecture}, booktitle = {The 3rd International Conference on Theory and Practice of Electronic Governance ICEGOV 2009, Bogota (Colombia), November 10-13, 2009}, year = {2009}, pages = {5-10}, publisher = {ACM Press}, isbn = {978-1-605558-663-2}, author = {Wojciech Cellary and Sergiusz Strykowski}, editor = {Tomasz Janowski and Jim Davies} }