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Shewale, N.G.: Information delivery of full-text databases in academic and research libraries using hypermedia (1998)
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Laegreid, J.A.: SIFT: a Norwegian information retrieval system (1993)
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Sievert, M.E.; McKinin, E.J.: Why full-text misses some relevant documents : an analysis of documents not retrieved by CCML or MEDIS (1989)
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