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UMI's ProQuest Direct now available on World Wide Web (1996)
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Machovec, G.S.: Electronic journal market overview in 1997 : part 2 - the aggregators (1997)
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Needleman, M.H.: Z39.50: new doors opening (1992)
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Morgan, E.L.: WAIS and Gopher servers : a guide for Internet end-users (1994)
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DeLuca, D.: Ovid Technologies' implementation of the Z39.50 client/server standard : the opportunity to integrate multiple systems (1995)
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