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Brenner, E.H.; Saracevic, T.: Indexing and searching in perspective (1985)
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Booth, P.F.; South, M.L.: Information filing and finding (1982)
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Fugmann, R.: ¬The analytico-synthetic foundation for large indexing & information retrieval systems : dedicated to Prof. Dr. Werner Schultheis, the vigorous initiator of modern chem. documentation in Germany on the occasion of his 85th birthday (1983)
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Lancaster, F.W.: Vocabulary control for information retrieval (1986)
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