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  • × year_i:[1960 TO 1970}
  1. Maron, M.E.; Kuhns, I.L.: On relevance, probabilistic indexing and information retrieval (1960) 5.78 
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  2. Iker, H.P.: Solution of Boolean equations through the use of term weights to the base two (1967) 5.78 
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  3. Goffman, W.: ¬A searching procedure for information retrieval (1964) 5.78 
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