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M.  Erkens, Malzahn, N., Daems, O., und H. Hoppe, U., ?Using Text-Analytic Methods to Extract Potential Misconceptions from Video Comments?, in 3rd International Workshop on Teaching Analytics (IWTA-2013) at EC-TEL 2013 - Eighth European Conference on Technology Enhanced Learning, Paphos, Cyprus, 2013.\par \par N.  Malzahn, Ziebarth, S., und H. Hoppe, U., ?Using Casual Games and Ontologies to Train Unskilled Workers - An Experience with the FoodWeb 2.0 Platform. 4th International Conference on Computer Supported Education (CSEDU)?, 2012.\par \par S.  Ziebarth, Malzahn, N., und Hoppe, H. U., ?Using Data Mining Techniques to Support the Creation of Competence Ontologies.?, in AIED, 2009, S. 223?230.\par \par }