A. Mislove, B. Viswanath, K. Gummadi, and P. Druschel. Proceedings of the Third ACM International Conference on Web Search and Data Mining, page 251--260. New York, NY, USA, ACM, (2010)
J. Yang, and J. Leskovec. Proceedings of the Sixth ACM International Conference on Web Search and Data Mining, page 587--596. New York, NY, USA, ACM, (2013)
J. Qin, J. Xu, D. Hu, M. Sageman, and H. Chen. Intelligence and Security Informatics, volume 3495 of Lecture Notes in Computer Science, Springer, Berlin / Heidelberg, (2005)