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Malan, C.: ¬The 500 Dewey-class (1992)
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Plummer, K.A.: Mathematics subject headings for the PreK-12 community: a comparison of key terms from the National Council of Teachers of Mathematics (NCTM) Mathematics Standards to ERIC Thesaurus descriptors and the Library of Congress Subject Headings (2006)
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Stock, W.G.: Informetrische Untersuchungsmethoden auf der Grundlage der Textwortmethode (1984)
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Martínez-Ávila, D.: Classification & authority control : expanding resource discovery (2016)
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Hisdal, E.: Logical structures for representation of knowledge and uncertainty (1998)
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