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Vasiljev, A.: Thesaurus project of the Delft University of Technology Library : Allgemeiner Thesaurus für Bibliotheken (1982)
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Effenberger, C.; Hauser, J.: Would an explicit versioning of the DDC bring advantages for retrieval? (2011)
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Otchere, F.F.: African studies thesaurus : subject headings for library uses (1992)
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Dahlberg, I.: Classification structure principles : Investigations, experiences, conclusions (1998)
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Matter, G.: Fremddatennutzung in kanadischen Bibliotheken (1990)
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