Prof. Wojciech Cellary participated in an international conference The 5th Global Conference on Cyberspace 2017 - Cyber4All: A Safe, Secure and Inclusive Cyberspace for Sustinable Development, which took place in New Delhi (India). The organizer of the conference, which was the The Ministry of Electronics on Information Technology invited prof. Cellarem to serve as co-chairman of the doctoral colloquium held on November 25, 2017. The academic partner of Doctoral Colloquium was The India Institute of Technology from New Delhi. Prof. Cellary gave a lecture entitled "What is the difference between science and non-science, or how to produce a proper doctoral thesis" addressed to doctoral students and researchers.