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Balakrishnan, U,; Soergel, D.; Helfer, O.: Representing concepts through description logic expressions for knowledge organization system (KOS) mapping (2020)
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Soergel, D.: Towards a relation ontology for the Semantic Web (2011)
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- Classification and ontology: formal approaches and access to knowledge: proceedings of the International UDC Seminar, 19-20 September 2011, The Hague, The Netherlands. Eds.: A. Slavic u. E. Civallero
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Soergel, D.: Digital libraries and knowledge organization (2009)
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- Semantic digital libraries. Eds.: S.R. Kruk, B. McDaniel