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)
S. Wu, J. Hofman, W. Mason, and D. Watts. Proceedings of the 20th International Conference on World Wide Web, page 705--714. New York, NY, USA, ACM, (2011)
T. Dillon, A. Talevski, V. Potdar, and E. Chang. Ubiquitous Intelligence and Computing: 6th International Conference, UIC 2009, Brisbane, Australia, (2009)
S. Rudolph. Proceedings of the 15th International Conference on Conceptual Structures (ICCS 2007), volume 4604 of Lecture Notes in Artificial Intelligence, page 321-332. Berlin, Heidelberg, Springer-Verlag, (July 2007)