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Smeaton, A.F.: Progress in the application of natural language processing to information retrieval tasks (1992)
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Moore, N.L.: LISA indexing : economic aspects of controlled indexing (1988)
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Youngen, G.K.: Citation patterns to traditional and electronic preprints in the published literature (1998)
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Gorman, G.E.; Mills, J.J.: Guide to current indexing and abstracting services in the third world (1992)
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Bakewell, K.G.B.; Rowland, G.: Indexing and abstracting (1993)
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