R. Kumar, J. Novak, B. Pang, и A. Tomkins. WWW '07: Proceedings of the 16th international conference on World Wide Web, стр. 629--638. New York, NY, USA, ACM, (2007)
R. Kumar, J. Novak, B. Pang, и A. Tomkins. WWW '07: Proceedings of the 16th international conference on World Wide Web, стр. 629--638. New York, NY, USA, ACM, (2007)