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Classification research for knowledge representation and organization : Proc. of the 5th Int. Study Conf. on Classification Research, Toronto, Canada, 24.-28.6.1991 (1992)
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Beghtol, C.: Knowledge domains : multidisciplinarity and bibliographic classification systems (1998)
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Hulme, E.W.: Principles of book classification (1985)
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Thomas, A.R.: Blissful beliefs : Henry Evelyn Bliss councels on classification (1995)
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Beghtol, C.: From the universe of knowledge to the universe of concepts : the structural revolution in classification for information retrieval (2008)
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