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  • × subject_ss:"Subject headings"
  • × language_ss:"e"
  • × theme_ss:"Thesauri"
  1. Unesco thesaurus : a structured list of descriptors for indexing and retrieving literature in the fields of education, science, social science, culture and communication (1977) 1.00 
    1.0 = *:*, product of:
  1.0 = boost
  1.0 = queryNorm