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Gebhardt, W.: ¬Die Sachkatalogisierung als Aufgabe des wissenschaftlichen Bibliothekars (1959)
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Gebhardt, F.: Dokumenten-Retrieval und Künstliche Intelligenz (1987)
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Gebhardt, F.: Querverbindungen zwischen Information-Retrieval- und Experten-Systemen (1985)
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Gebhardt, W.: ¬Eine erfolgreiche deutsche Sachkatalogisierungsmethodik : H.W. Eppelsheimer zum 17.10.1970 (1970)
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Gebhardt, W.: Zur Geschichte der Sachkatalogisierung an der Universitätsbibliothek Tübingen 1817 bis 1961 (1982)
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Cordes, H.: Sachkatalog (1963)
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Sachkatalog der Deutschen Bücherei Leipzig 1913-1945 : Monographien - Zeitschriften - Karten (1994)
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Lambrecht, J.: ¬Das Notenarchiv des Westdeutschen Rundfunks (1994)
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Luther, A.: ¬Der Sachkatalog (1925)
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Bernard, B.: ¬Das Historische Archiv des Westdeutschen Rundfunks Köln (1997)
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