Search (1 results, page 1 of 1)

  • × year_i:[1990 TO 2000}
  • × author_ss:"Vakkari, P."
  1. Järvelin, K.; Vakkari, P.: ¬The evolution of library and information science 1965-1985 : a content analysis of journal titles (1993) 0.04 
    0.040115565 = product of:
  0.16046226 = sum of:
    0.16046226 = weight(_text_:evolution in 4649) [ClassicSimilarity], result of:
      0.16046226 = score(doc=4649,freq=2.0), product of:
        0.19585751 = queryWeight, product of:
          5.29663 = idf(docFreq=601, maxDocs=44218)
          0.03697776 = queryNorm
        0.8192806 = fieldWeight in 4649, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          5.29663 = idf(docFreq=601, maxDocs=44218)
          0.109375 = fieldNorm(doc=4649)
  0.25 = coord(1/4)