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C. Scholz, M. Atzmueller, M. Kibanov, и G. Stumme. Proceedings of the 2013 IEEE/ACM International Conference on Advances in Social Networks Analysis and Mining (ASONAM 2013), стр. 356--363. Niagara, Ontario, Canada, (2013)
F. Mitzlaff, M. Atzmueller, G. Stumme, и A. Hotho. Complex Networks IV, том 476 из Studies in Computational Intelligence, Springer Verlag, Heidelberg, Germany, (2013)