Search (1 results, page 1 of 1)

  • × author_ss:"Bland, R.N."
  • × theme_ss:"OPAC"
  • × year_i:[1980 TO 1990}
  1. Bland, R.N.: Evaluating the performance of the Online Public Access Catalog : a redefinition of basic measures (1989) 0.00 
    0.002661118 = product of:
  0.023950063 = sum of:
    0.023950063 = weight(_text_:of in 4595) [ClassicSimilarity], result of:
      0.023950063 = score(doc=4595,freq=4.0), product of:
        0.061262865 = queryWeight, product of:
          1.5637573 = idf(docFreq=25162, maxDocs=44218)
          0.03917671 = queryNorm
        0.39093933 = fieldWeight in 4595, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          1.5637573 = idf(docFreq=25162, maxDocs=44218)
          0.125 = fieldNorm(doc=4595)
  0.11111111 = coord(1/9)