M. Thein, und M. Thwin. International Journal of Computer Science, Engineering and Information Technology (IJCSEIT), Volume 2 von IFIP Advances in Information and Communication Technology, Seite 13-32. Springer, (Dezember 2012)
E. Demidova, X. Zhou, und W. Nejdl. Proceedings of the 21st international conference companion on World Wide Web, Seite 325--328. New York, NY, USA, ACM, (2012)