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Fugmann, R.: ¬The complementarity of natural and indexing languages (1982)
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Fugmann, R.; Kusemann, G.; Winter, H.J.: ¬The supply of information an chemical reactions in the IDC system (1979)
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Fugmann, R.: ¬The glamour and the misery of the thesaurus approach : treatise 4 on information retrieval theory (1974)
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Fugmann, R.: ¬The theoretical foundation of the IDC-system : 6 postulates for information retrieval; treatise 1 on information retrieval theory (1972)
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Fugmann, R.: On the role of subjectivity in establishing, using, operating and evaluating information retrieval systems : treatise 2 on information retrieval theory (1973)
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Fugmann, R.; Nickelsen, H.; Nickelsen, I.; Winter, J.H.: Representation of concept relations using the TOSAR system of IDC : treatise 3 on information retrieval theory (1974)
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Fugmann, R.: On the practice of indexing and its theoretical foundations (1980)
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Fugmann, R.: ¬The5[¬five] axiom theory of indexing and information supply (1985)
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Fugmann, R.: Illusory goals in information science research (1992)
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Fugmann, R.: ¬An interactive classaurus on the PC (1990)
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Fugmann, R.: Peculiarities of chemical information from a theoretical viewpoint (1985)
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Fugmann, R.: Toward a theory of information supply and indexing : treatise 6 on retrieval system theory (1976)
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Fugmann, R.: Comments on: the UNISIST draft on indexing principles (1977)
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Fugmann, R.; Winter, J.H.: Reverse retrieval : toward analogy inferences by mechanized classification (treatise 7 on retrieval system theory) (1979)
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Fugmann, R.; Denk, W.: Variations in the order-creating power of interactive retrieval systems : treatise 8 on retrieval system theory (1980)
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Fugmann, R.: Unusual possibilities in indexing and classification (1990)
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Fugmann, R.: Book indexing : the classificatory approach (1994)
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Fugmann, R.: Representational predictibility : key to the resolution of several pending issues in indexing and information supply (1994)
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Fugmann, R.: Galileo and the inverse precision/recall relationship : medieval attitudes in modern information science (1994)
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Fugmann, R.: ¬The complementarity of natural and controlled languages in indexing (1995)
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