H. Ma, D. Zhou, C. Liu, M. Lyu, и I. King. Proceedings of the Fourth ACM International Conference on Web Search and Data Mining, стр. 287--296. New York, NY, USA, ACM, (2011)
H. Ma, D. Zhou, C. Liu, M. Lyu, и I. King. Proceedings of the Fourth ACM International Conference on Web Search and Data Mining, стр. 287--296. New York, NY, USA, ACM, (2011)