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Library of Congress Subject Headings (2004)
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DeZelar-Tiedman, C.: Exploring user-contributed metadata's potential to enhance access to literary works (2011)
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Jahns, Y.: 20 years SWD : German subject authority data prepared for the future (2011)
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Hulme, E.W.: Principles of book classification (1985)
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Spero, S.: LCSH is to thesaurus as doorbell is to mammal : visualizing structural problems in the Library of Congress Subject Headings (2008)
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