Search (4 results, page 1 of 1)

  • × author_ss:"Larson, R.R."
  • × theme_ss:"Benutzerstudien"
  1. Larson, R.R.: Users look at online catalogs : Pt.2: interacting with online catalogs. Final report for the Council on Library Resources (1983) 0.00 
    0.004233568 = product of:
  0.008467136 = sum of:
    0.008467136 = product of:
      0.016934272 = sum of:
        0.016934272 = weight(_text_:e in 2424) [ClassicSimilarity], result of:
          0.016934272 = score(doc=2424,freq=2.0), product of:
            0.07616667 = queryWeight, product of:
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.052990302 = queryNorm
            0.2223318 = fieldWeight in 2424, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.109375 = fieldNorm(doc=2424)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Language
    e
  2. Larson, R.R.: Users look at online catalogs : results of a national survey of users and non-users of online public access catalogs (1982) 0.00 
    0.0036287727 = product of:
  0.0072575454 = sum of:
    0.0072575454 = product of:
      0.014515091 = sum of:
        0.014515091 = weight(_text_:e in 2972) [ClassicSimilarity], result of:
          0.014515091 = score(doc=2972,freq=2.0), product of:
            0.07616667 = queryWeight, product of:
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.052990302 = queryNorm
            0.19057012 = fieldWeight in 2972, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.09375 = fieldNorm(doc=2972)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Language
    e
  3. Larson, R.R.: Evaluation of advanced retrieval techniques in an experimental online catalog (1992) 0.00 
    0.0018143863 = product of:
  0.0036287727 = sum of:
    0.0036287727 = product of:
      0.0072575454 = sum of:
        0.0072575454 = weight(_text_:e in 481) [ClassicSimilarity], result of:
          0.0072575454 = score(doc=481,freq=2.0), product of:
            0.07616667 = queryWeight, product of:
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.052990302 = queryNorm
            0.09528506 = fieldWeight in 481, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.046875 = fieldNorm(doc=481)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Language
    e
  4. Larson, R.R.: ¬The decline of subject searching : long-term trends and patterns of index use in an online catalog (1991) 0.00 
    0.0018143863 = product of:
  0.0036287727 = sum of:
    0.0036287727 = product of:
      0.0072575454 = sum of:
        0.0072575454 = weight(_text_:e in 1104) [ClassicSimilarity], result of:
          0.0072575454 = score(doc=1104,freq=2.0), product of:
            0.07616667 = queryWeight, product of:
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.052990302 = queryNorm
            0.09528506 = fieldWeight in 1104, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.046875 = fieldNorm(doc=1104)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Language
    e

Years

Types