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B. Krause, C. Schmitz, A. Hotho, и G. Stumme. AIRWeb '08: Proceedings of the 4th international workshop on Adversarial information retrieval on the web, стр. 61--68. New York, NY, USA, ACM, (2008)
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M. Grahl, A. Hotho, и G. Stumme. 7th International Conference on Knowledge Management (I-KNOW '07), стр. 356-364. Graz, Austria, Know-Center, (сентября 2007)
M. Grahl, A. Hotho, и G. Stumme. Workshop Proceedings of Lernen - Wissensentdeckung - Adaptivität (LWA 2007), стр. 50-54. Martin-Luther-Universität Halle-Wittenberg, (сентября 2007)
R. Jäschke, L. Marinho, A. Hotho, L. Schmidt-Thieme, и G. Stumme. Knowledge Discovery in Databases: PKDD 2007, 11th European Conference on Principles and Practice of Knowledge Discovery in Databases, Warsaw, Poland, September 17-21, 2007, Proceedings, том 4702 из Lecture Notes in Computer Science, стр. 506-514. Springer, (2007)