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Jacobson, T.E.; Martin, L.M.: Merging critical thinking and the electronic library : a visionary perspective of SuperPAC, an enhanced OPAC (1993)
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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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Gater, N.: LIBRIS OPAC for any library system (1994)
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Stafford, J.: the experience of a Brazilian university's library system (1997)
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Burton, P.A.; Hawkins, A.M.: Attitudes to an online public access catalogue in an academic library (1993)
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