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UnCovering Blackwell's document delivery service (1993)
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SilverPlatter, KR SourceOne to provide document delivery services (1997)
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Hawkins, D.T.: Web-based training for online retrieval : some examples (1997)
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Casale, M.: Document delivery : the electronic challenge (1995)
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Notess, G.R.: Internet database review : UnCover (1993)
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