Search (1 results, page 1 of 1)

  • × author_ss:"Keen, E.M."
  • × theme_ss:"Retrievalstudien"
  • × year_i:[1980 TO 1990}
  1. Keen, E.M.: Laboratory tests of manual systems (1981) 0.02
    0.018298382 = product of:
      0.082342714 = sum of:
        0.016935252 = weight(_text_:of in 3152) [ClassicSimilarity], result of:
          0.016935252 = score(doc=3152,freq=2.0), product of:
            0.061262865 = queryWeight, product of:
              1.5637573 = idf(docFreq=25162, maxDocs=44218)
              0.03917671 = queryNorm
            0.27643585 = fieldWeight in 3152, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.5637573 = idf(docFreq=25162, maxDocs=44218)
              0.125 = fieldNorm(doc=3152)
        0.06540746 = weight(_text_:systems in 3152) [ClassicSimilarity], result of:
          0.06540746 = score(doc=3152,freq=2.0), product of:
            0.12039685 = queryWeight, product of:
              3.0731742 = idf(docFreq=5561, maxDocs=44218)
              0.03917671 = queryNorm
            0.5432656 = fieldWeight in 3152, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.0731742 = idf(docFreq=5561, maxDocs=44218)
              0.125 = fieldNorm(doc=3152)
      0.22222222 = coord(2/9)