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Gattermann, G.: Kann der Online-Benutzerkatalog unser Katalogproblem lösen? : Erfahrungen aus dem OPAC-Projekt der Universitätsbibliothek Düsseldorf (1990)
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Gattermann, G.: Probleme des Online-Benutzerkatalogs : Erfahrungen aus dem OPAC-Projekt der Universitätsbibliothek Düsseldorf (1989)
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Gattermann, G.: Online public access catalogue (1985)
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Gattermann, G.: Elektronische Bibliotheken? : Die Information in der Bibliothek der Gegenwart (1993)
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Nohr, H.: Zum Sachzugriff über Stichworte in Online-Publikumskatalogen (OPACs) (1991)
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Bauhuis, W.: Warnung vor Publikumskatalogen (1959)
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Nohr, H.: Sachliche Erschließung in deutschsprachigen Online-Publikumskatalogen (1989)
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Karbach, N.: Suchverhalten von Benutzern an Online-Publikumskatalogen (1991)
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Lüke, S.: Retrievaleigenschaften von Online-Publikumskatalogen, dargestellt am Beispiel OKAPI (1998)
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