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Mills, J.: Bibliographic classification (1976)
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- Classification in the 1970s: a second look. Rev. ed. Ed.: A. Maltby
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Gopinath, M.A.: Colon classification (1976)
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- Classification in the 1970s: a second look. Rev. ed. Ed.: A. Maltby
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Dahlberg, I.: Principles for the construction of a universal classification system : a proposal (1978)
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Austin, D.: ¬The CRG research into a freely faceted scheme (1976)
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Aitchison, J.: ¬The thesaurofacet. A multipurpose retrieval language tool (1970)
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Mills, J.: Library classification (1970)
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Austin, D.: Differences between library classifications and machine-based subject retrieval systems : some inferences drawn from research in Britain, 1963-1973 (1979)
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- Ordering systems for global information networks. Proc. of the 3rd Int. Study Conf. on Classification Research, Bombay 1975. Ed. by A. Neelameghan
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Wilson, T.D.: ¬The work of the British Classification Research Group (1972)
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Scheele, M.: ¬Die universelle Facetten-Classifikation (UFC) und ihre mögliche Bedeutung für Allgemeinbildung, Terminologieforschung und Informationswesen (1978)
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