Availability, Reliability, and Security in Information Systems and HCI : IFIP WG 8.4, 8.9, TC 5 International Cross-Domain Conference, CD-ARES 2013, Regensburg, Germany, September 2-6, 2013. Proceedings - Kittl, Christian; Simos, Dimitris E.; Weippl, Edgar; Xu, Lida; Cuzzocrea, Alfredo (Lecture Notes in Computer Science, 2013)