Ubiquitous Computing and Multimedia Applications: Second International Conference, UCMA 2011, Daejeon, Korea, April 13-15, 2011. Proceedings, Part I

Advanced Computer Science and Information Technology: Third International Conference, AST 2011, Seoul, Korea, September 27-29, 2011. Proceedings

Advanced Communication and Networking: International Conference, ACN 2011, Brno, Czech Republic, August 15-17, 2011, Proceedings

Information Security and Assurance: International Conference, ISA 2011, Brno, Czech Republic, August 15-17, 2011, Proceedings