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Ensor, P.: User characteristics of keyword searching in an OPAC (1992)
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Ensor, P.: User practices in keyword and Boolean searching on an online public access catalog (1992)
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Dokter, G.: Benutzungsanstieg nach OPAC-Einführung in der Universitätsbibliothek Bochum (1993)
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Ballard, T.; Smith, J.: ¬The human interface : an ongoing study of OPAC usage at Adelphi University (1992)
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Sapa, R.: Zachowania informacy jne uzytkownika OPAC w Bibliotece Jagiellonskiej (1997)
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Peters, T.A.: ¬The online catalog : A critical examination of public use (1991)
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Diepolder, S.: Was ist eine Köperschaft? : Umfrage zur Opac-Nutzung an der Universitätsbibliothek Tübingen (2003)
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Weichert, M.: "Gibt es auch Wahnsinn" : Benutzeruntersuchungen an einem Hamburger WebOPAC (2002)
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Peters, T.A.; Kurth, M.: Controlled and uncontrolled vocabulary subject searching in an academic library online catalog (1991)
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Thorne, R.; Whitlatch, J.B.: Patron online catalog success (1994)
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Franceschi, L.de: Percorsi di ricerca nell'OPAC del opol bolognese SBN (1998)
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Thissen, F.: Verloren in digitalen Netzen : Nutzertests zur Optimierung der Bedienerfreundlichkei eines Online-Katalogs (2002)
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