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Umlauf, K.: Klassifikationen in Öffentlichen Bibliotheken (2018)
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Kolbe, C.: Kritischer Vergleich der Klassifikation der Stadtbibliotheken Bielefeld, Duisburg und Hannover (1973)
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Veyssière, C.: ¬Die Klassifikationen der Stadtbibliotheken Bochum und Duisburg : eine vergleichende Untersuchung zweier ASB-Varianten (1983)
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Dost, C.: ¬Der Informationsdienst im System der Stadtbibliotheken Duisburg und Köln : eine vergleichende Untersuchung der Konzeptionen und der Informationsbestände (1985)
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Wissensorganisation und Verantwortung : Gesellschaftliche, ökonomische und technische Aspekte. Proceedings der 9. Tagung der Deutschen Sektion der Internationalen Gesellschaft für Wissensorganisation Duisburg, 5.-7. November 2004 (2006)
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