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Kaptein, O.: ¬Die neue KAB ... (1994)
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Kaptein, O.: Neufassung der KAB ... (1994)
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Kaptein, U.: Überarbeitete Kindersystematik der KAB (2010)
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Kaptein, R.; Kamps, J.: Explicit extraction of topical context (2011)
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Zerbst, H.-J.; Kaptein, O.: Gegenwärtiger Stand und Entwicklungstendenzen der Sacherschließung : Auswertung einer Umfrage an deutschen wissenschaftlichen und Öffentlichen Bibliotheken (1993)
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Mißfeld, W.: Mit dem zentralen Dienst durchs Nadelöhr (1995)
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Kröger, E. (Bearb.): Systematik der Stadtbibliothek Duisburg (2001)
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Alex, H.; Heiner-Freiling, M.: DDC-Sachgruppen der Deutschen Naitonalbibliografie : Leitfaden zu ihrer Vergabe (2003)
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¬The use of alternate classification numbers (1993)
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Körner, H.G.: Notationssysteme für Dokumentationssprachen und Klassifikationssysteme (1980)
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