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  • × author_ss:"Cooper, W.S."
  • × theme_ss:"Retrievalstudien"
  • × year_i:[1970 TO 1980}
  1. Cooper, W.S.: ¬On selecting a measure of retrieval effectiveness, revisited (1973) 0.01 
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    Source
    Journal of the American Society for Information Science. 24(1973), S.87-100