M. Pennacchiotti, und A. Popescu. Proceedings of the 17th ACM SIGKDD International Conference on Knowledge Discovery and Data Mining, Seite 430--438. New York, NY, USA, ACM, (2011)
S. Doerfel, D. Zoller, P. Singer, T. Niebler, A. Hotho, und M. Strohmaier. 23rd International World Wide Web Conference, WWW '14, Seoul, Republic of Korea, April 7-11, 2014, Companion Volume, Seite 251--252. New York, NY, USA, ACM, (2014)
H. Cheng, Y. Liang, X. Xing, X. Liu, R. Han, Q. Lv, und S. Mishra. Proceedings of the fifth ACM international conference on Web search and data mining, Seite 23--32. New York, NY, USA, ACM, (2012)