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C. Scholz, M. Atzmueller, M. Kibanov, and G. Stumme. Advances in Social Networks Analysis and Mining (ASONAM), 2013 International Conference on, Los Alamitos, CA, USA, (2013)
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G. Stumme. Conceptual Structures at Work: 12th International Conference on Conceptual Structures (ICCS 2004), volume 3127 of LNCS, page 109-125. Heidelberg, Springer, (2004)