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Effenberger, C.: ¬Die Dewey Dezimalklassifikation als Erschließungsinstrument : optimiertes Retrieval durch eine Versionierung der DDC (2011)
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Effenberger, C.: ¬Ein semantisches Netz für die Suche mit der Dewey-Dezimalklassifikation : optimiertes Retrieval durch die Verwendung versionierter DDC-Klassen (2011)
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Effenberger, C.; Hauser, J.: Would an explicit versioning of the DDC bring advantages for retrieval? (2011)
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