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O'Leary, M.: ProQuest direct delivers UMI goods (1996)
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Combs, J.: ProQuest Direct : remote research and electronic document delivery from UMI (1997)
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UMI's ProQuest Direct now available on World Wide Web (1996)
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Buntrock, R.E.: UMI's applied science and technology plus (1997)
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Jascó, P.: CD-ROM databases with full-page images (1998)
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