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  • × author_ss:"Rijsbergen, C.J. van"
  • × theme_ss:"Semantisches Umfeld in Indexierung u. Retrieval"
  1. Smeaton, A.F.; Rijsbergen, C.J. van: ¬The retrieval effects of query expansion on a feedback document retrieval system (1983) 0.21 
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    Date
    30. 3.2001 13:32:22