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  • × author_ss:"Cooper, W.S."
  • × language_ss:"e"
  • × year_i:[1970 TO 1980}
  1. Cooper, W.S.: ¬The paradoxal role of unexamined documents in the evaluation of retrieval effectiveness (1976) 0.03 
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    Source
    Information processing and management. 12(1976), S.367-375