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language_ss:"e"
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subject_ss:"Subject headings"
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theme_ss:"Beziehungen verbale / systematische Erschließung"
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theme_ss:"Thesauri"
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type_ss:"m"
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Unesco thesaurus : a structured list of descriptors for indexing and retrieving literature in the fields of education, science, social science, culture and communication (1977)
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1.0 = *:*, product of: 1.0 = boost 1.0 = queryNorm