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Medical Subject Headings : tree structures (1993)
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Olson, H.A.: How we construct subjects : a feminist analysis (2007)
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Wang, J.: Automatic thesaurus development : term extraction from title metadata (2006)
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Golub, K.: Subject access in Swedish discovery services (2018)
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Greenberg, J.: Automatic query expansion via lexical-semantic relationships (2001)
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