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Gödert, W.; Hubrich, J.; Nagelschmidt, M.: Semantic knowledge representation for information retrieval (2014)
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Coates, E.J.: Subject catalogues : headings and structure (1960)
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Bertram, J.: Einführung in die inhaltliche Erschließung : Grundlagen - Methoden - Instrumente (2005)
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Needham, C.D.: Organising knowledge in libraries : an introduction to classification and cataloguing (1966)
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Mulvany, N.C.: Indexing books (1994)
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