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P. Heim, T. Schlegel, and T. Ertl. Proceedings of the 7th International Conference on Semantic Systems (I-SEMANTICS 2011), page 150-158. New York, NY, USA, ACM, (2011)
P. Heim, and S. Lohmann. Proceedings of the 9th International Conference on Knowledge Management and Knowledge Technologies (I-KNOW 08), page 106-114. Graz, J.UCS, (2009)
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P. Heim, J. Ziegler, and S. Lohmann. Proceedings of the International Workshop on Interacting with Multimedia Content in the Social Semantic Web (IMC-SSW'08), page 49-58. CEUR-WS, (2008)
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