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Schmitz, A.: Adreßbücher und ihr Nutzwert für den Allgemeinen Informationsdienst : Typen und Beurteilungskriterien anhand von acht bis zehn deutsch- und englischsprachigen Beispielen (1980)
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Schmitz, A.: ¬Die Entwicklung der verbalen Sacherschließung in Öffentlichen Bibliotheken der Bundesrepublik Deutschland bis 1984 (1986)
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- Geschichte des Schlagwortkataloges
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Schmitz, A.: Faktenauskunftsmittel und 'Elektronische Informationsmittel' : Definition und Typologie sowie Untersuchungen anhand ausgewählter Nachschlagewerke (1992)
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