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Cherry, J.M.; Clinton, M.: OPACs at five Ontario universities : a profile of users and user satisfaction (1992)
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Balaam, A.: Approaches to library catalogues (1993)
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Hauffe, H.: ¬Ein OPAC-Konzept für die wissenschaftlichen Bibliotheken Österreichs (1988)
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Kohl, E.: ¬Die Ausgestaltung von HEBIS zu einem deutschen OPAC-System : Der Online-Katalog des Verbundes der obersten Bundesbehörden (1986)
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Elliot, J.D.: ¬The use of OPACs (Online Public Access Catalogues) in map libraries (1991)
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