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Cooey, N.; Phillips, A.: Library of Congress Subject Headings : a post-coordinated future (2023)
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Zeng, M.L.; Fan, W.; Lin, X.: SKOS for an integrated vocabulary structure (2008)
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Mao, M.: Ontology mapping : towards semantic interoperability in distributed and heterogeneous environments (2008)
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Broughton, V.: Concepts and terms in the faceted classification : the case of UDC (2010)
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Dick, S.J.: Astronomy's Three Kingdom System : a comprehensive classification system of celestial objects (2019)
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