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  • × author_ss:"DeVere, R."
  • × type_ss:"r"
  • × language_ss:"e"
  • × year_i:[1990 TO 2000}
  1. Walker, S.; DeVere, R.: Improving subject retrieval in online catalogues : T.2: Relevance feedback and query expansion (1990) 1.00 
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  1.0 = queryNorm