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  • × author_ss:"Belkin, N.J."
  • × theme_ss:"Retrievalalgorithmen"
  • × year_i:[1970 TO 1980}
  1. Robertson, S.E.; Belkin, N.J.: Ranking in principle (1978) 0.00 
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    Source
    Journal of documentation. 34(1978), S.93-100