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Hogan, S.A.: Educating users about catalogues and cataloguing : the impossible dream (1993)
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Walker, S.: ¬The Okapi online catalogue research projects (1989)
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Summey, T.P.; Walchle, B.A.: ¬An investigation into use and instruction for an online catalog (1992)
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Smith, N.A.: ONE, OPAC network in Europe : taking a further step towards a Europe-wide information network (1995)
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- Program. 29(1995) no.4, S.427-432
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Schulz, U.: "Wie der Schnabel gewachsen ist" : Über die Qualität von OPACs - Anforderungen, Realität, Perspektiven (1998)
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Felscher, R.: BS2000-Dialogsystem, BVB, ELIS and SISIS : eine kurze Geschichte der EDV-Katalogunternehmen an der Universitätsbibliothek Erlangen-Nürnberg (1996)
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Hartwieg, G.: Ordnung ist gut, Kontext ist besser : zur Sacherschließung im OPAC (1997)
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Duchemin, P.-Y.: BN-OPALINE (1997)
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Schmidt, E.; Weigang, G.; Schulz, U.: OPAC-Nutzer ernst genommen : eine Thinking-Aloud-Studie am ALS-OPAC der Hamburger Öffentlichen Bücherhallen (1997)
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Sugano, I.: ¬The study of criteria for evaluating OPACs as information retrieval systems (1996)
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Merchant, B.; Winters, N.: Small libraries on the Internet (1997)
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Welcome to the MELVYL system web interface (1997)
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Park, I.: ¬A comparative study of major OPACs in selected academic libraries for developing countries : user study and subjective user evaluation (1997)
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Cochrane, P.A.: Redesign of catalogs and indexes for improved subject access : selected papers of Pauline A. Cochrane (1985)
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Crawford, W.: Patron access : Issues for online catalogs (1987)
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Maylein, L.; Langenstein, A.: Neues vom Relevanz-Ranking im HEIDI-Katalog der Universitätsbibliothek Heidelberg : Perspektiven für bibliothekarische Dienstleistungen (2013)
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Jezior, T.: Adaption und Integration von Suchmaschinentechnologie in mor(!)dernen OPACs (2013)
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Christensen, A.; Finck, M.: Discovery-Systeme : eine Analyse ihrer Geschichte und Gegenwart mit dem Hype-Zyklus (2021)
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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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- Canadian journal of information science. 16(1991) no.4, S.2-22