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Notess, G.R.: Internet database review : UnCover (1993)
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Mountifield, H.M.: Electronic current awareness service : a survival tool for the information age? (1995)
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Beckett, C.; Blackwell, B.H.: Document delivery : the UnCover experience (1993)
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Barden, P.: Multimedia document delivery : the birth of a new industry (1995)
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