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Bhattacharyya, G.: ¬A general theory of subject headings (1974)
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Kobrin, R.Y.: On the principles of terminological work in the creation of thesauri for information retrieval systems (1979)
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Vickery, B.C.: Structure and function in retrieval languages (1971)
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Gopinath, M.A.; Prasad, K.N.: Compatibility of the principles for design of thesaurus and classification scheme (1976)
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