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Walker, R.S.: Problem child : some observations on fiction, with a sketch of a new system of classification (1958)
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Shera, J.H.: Pattern, structure, and conceptualization in classification for information retrieval (1957)
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Dyson, G.M.: Advances in classification (1955)
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Vickery, B.C.: Relations between subject fields : problems of constructing a general classification (1957)
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Joyce, T.; Needham, R.M.: ¬The thesaurus approach to information retrieval (1958)
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Taube, M.; Gull, C.D.; Wachtel, I.S.: Unit terms in coordinate indexing (1952)
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Taube, M.; Wachtel, I.S.: ¬The logical structure of coordinate indexing (1953)
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Shaw, R.R.: Mechanical storage, handling, retrieval and supply of information (1958)
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Farradane, J.E.L.: ¬A scientific theory of classification and indexing and its practical applications (1950)
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Lubetzky, S.: Development of cataloging rules (1953)
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Bar-Hillel, Y.; Carnap, R.: ¬An outline of a theory of semantic information (1952)
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