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Poo, D.C.C.; Khoo, C.S.G.: Online Catalog Subject Searching (2009)
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Cole, T.W.: Design and development of a library information workstation (1993)
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Mischo, W.H.; Cole, T.W.: ¬The Illinois extended OPAC : library information workstation design and development (1992)
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OPACs: an overview (1993)
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