- Christos K. Georgiadis, Hamid Jahankhani, Elias Pimenidis, Rabih Bashroush, Ameer Al-Nemrat, editors, Global Security, Safety and Sustainability & e-Democracy - 7th International and 4th e-Democracy, Joint Conferences, ICGS3/e-Democracy 2011, Thessaloniki, Greece, August 24-26, 2011, Revised Selected Papers. Volume 99 of Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, Springer, 2012.