T. Sakaki, M. Okazaki, und Y. Matsuo. Proceedings of the 19th international conference on World wide web, Seite 851--860. New York, NY, USA, ACM, (2010)
A. Popescu, und M. Pennacchiotti. Proceedings of the 19th ACM international conference on Information and knowledge management, Seite 1873--1876. New York, NY, USA, ACM, (2010)
A. Wang. Data and Applications Security and Privacy XXIV, Volume 6166 von Lecture Notes in Computer Science, Kapitel 25, Springer Berlin / Heidelberg, Berlin, Heidelberg, (2010)