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Stählin, A.: Kleine Sprachlehre des Schlagwortkatalogs (1950)
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Jackson, I.H.: Advantages and disadvantages of a Subject System of Classification as a key to a depository collection (1951)
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Taube, M.: Functional approach to bibliographic organization : a critique and a proposal (1951)
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Penalosa, F.: ¬A card catalog : a failure in communication (1956)
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Foskett, D.J.: ¬The construction of a faceted classification for a special subject (1959)
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Barr, W.F.: Advantages and disadvatages of the Superintendent of Documents Classification as a key to a depository collection (1951)
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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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Hunger, H.: Zentralisation und Dezentralisation im Schlagwort (1955)
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Brown, R.: How shall a thing be called? (1958)
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Mooers, C.N.: ¬A mathematical theory of language symbols in retrieval (1959)
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Garfield, E.: Citation indexes for science : a new dimension in documentation through association of ideas (1955)
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Orvig, M.: ¬The reader interest arrangement : an american shelving system with a future (1955)
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Luhn, H.P.: ¬A statistical approach to the mechanical encoding and searching of literary information (1957)
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Bar-Hillel, Y.; Carnap, R.: ¬An outline of a theory of semantic information (1953)
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Merritt, L.C.: ¬A footnote on the need for local subject cataloging (1952)
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Herrick, M.D.: ¬The development of a classified catalog in library schools (1953)
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MacBride, J.H.: ¬A subject approach to United Nations Documents (1954)
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Warheit, I.A.: ¬A study of coordinate indexing as applied to U.S. Atomic Energy Commission Reports (1955)
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Merryman, J.H.: Tactics and terminology in information retrieval : a summary of recent work (1958)
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CRG-Bulletin No.4 (1958)
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