2012 12th International Conference on Control, Automation and Systems (ICCCAS 2012), page. 1275 - 1278, 2012-10-17
2012 8th International Conference on Computing and Networking Technology (ICCNT2012), page. 425 - 432, 2012-08-27
2012 6th International Conference on New Trends in Information Science and Service Science (NISS2012), page. 111 - 114, 2012-10-23