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Hjoerland, B.: Subject representation and information seeking : contributions to a theory based on the theory of knowledge (1993)
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Hjoerland, B.: Theory of information science : Reply to Professor Gernot Wersig (1998)
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Hjoerland, B.: Information retrieval, text composition, and semantics (1998)
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Hjoerland, B.: ¬The classification of psychology : a case study in the classification of a knowledge field (1998)
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Zhang, X: Rough set theory based automatic text categorization (2005)
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Krajewski, M.: Paper machines : about cards & catalogs, 1548-1929 (2011)
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Wilson, P.: Subjects and the sense of position (1985)
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Donald, M: Origins of the modern mind : three stages in the evolution of culture and cognition (1991)
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