- Alexander B. Sideridis, Zoe Kardasiadou, Constantine P. Yialouris, Vasilios Zorkadis, editors, E-Democracy, Security, Privacy and Trust in a Digital World - 5th International Conference, E-Democracy 2013, Athens, Greece, December 5-6, 2013, Revised Selected Papers. Volume 441 of Communications in Computer and Information Science, Springer, 2014.