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Riesthuis, G.J.A.: Sociological aspects of classification (1995)
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Hjoerland, B.: ¬The methodology of constructing classification schemes : a discussion of the state-of-the-art (2003)
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Parrochia, D.: Mathematical theory of classification (2018)
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Zaytseva, E.: Classification tools for librarians and users : the Russian experience (2008)
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Blake, J.: Some issues in the classification of zoology (2011)
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