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Midorikawa, N.: Is the synthetic expression method of the Dewey Decimal Classification an effective device for treating complex subjects? (1997)
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- Library and information science. 1997, no.38, S.1-21
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Mirorikawa, N.: Structures of classification systems : hierarchical and multidimensional (1996)
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- Annals of Japan Society of Library Science. 42(1996) no.2, S.99-110
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Midorikawa, N.: ¬A discussion of the concepts of facets from the viewpoint of the structures of classification systems (1997)
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- Annals of Japan Society of Library Science. 43(1997) no.3, S.117-128