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Klotz, D.: ¬Die Entwicklung der Sacherschließung in deutschen Öffentlichen Bibliotheken (1900 - 1945) (1977)
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Heinrich, G.: Gegenwärtiger Stand und aktuelle Tendenzen der Sacherschließung in Universalbibliotheken (1978)
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Kiener, W.: ¬Die Diskussion um den Sachkatalog in der wissenschaftlichen Universalbibliothek seit 1910 (1973)
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Braun, H.: Sacherschließung 1978 (1979)
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LaFontaine, H.; Otlet, P.: ¬Die Schaffung einer Universalbibliographie (1978)
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Samurin, E.I.: Geschichte der bibliothekarisch-bibliographischen Klassifikation (1977)
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Heinrich, G.: Klassifikatorische Sacherschließung in deutschen Bibliotheken (1978)
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Roloff, H.: Lehrbuch der Sachkatalogisierung (1976)
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