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Harbord, E.: From golden retriever (?) to GUI : recent OPAC developments at Newcastle (1996)
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¬A graphical user interface : the case of the British Library network OPAC (1996)
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Cherry, J.M.; Clinton, M.: ¬An experimental investigation of two types of instruction for OPAC users (1991)
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Hauffe, H.: ¬Ein OPAC-Konzept für die wissenschaftlichen Bibliotheken Österreichs (1988)
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Jakobsen, E.: On-line public access catalogue (1992)
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