M. Yuen, L. Chen, и I. King. Proceedings of the International Conference on Computational Science and Engineering, CSE '09, 4, стр. 723--728. (августа 2009)
J. Tang, H. fung Leung, Q. Luo, D. Chen, и J. Gong. IJCAI'09: Proceedings of the 21st international jont conference on Artifical intelligence, стр. 2089--2094. San Francisco, CA, USA, Morgan Kaufmann Publishers Inc., (2009)
J. Leskovec, L. Backstrom, и J. Kleinberg. KDD '09: Proceedings of the 15th ACM SIGKDD international conference on Knowledge discovery and data mining, стр. 497--506. New York, NY, USA, ACM, (2009)
C. Tantipathananandh, T. Berger-Wolf, и D. Kempe. KDD '07: Proceedings of the 13th ACM SIGKDD international conference on Knowledge discovery and data mining, стр. 717--726. New York, NY, USA, ACM, (2007)