Search (3 results, page 1 of 1)

  • × author_ss:"Ratzek, W."
  • × language_ss:"d"
  • × type_ss:"a"
  1. Ratzek, W.: Problemlösung. Verifiziertes Faktum oder Illusion? (2013) 0.01 
    0.008509832 = product of:
  0.017019665 = sum of:
    0.017019665 = product of:
      0.051058993 = sum of:
        0.051058993 = weight(_text_:22 in 657) [ClassicSimilarity], result of:
          0.051058993 = score(doc=657,freq=4.0), product of:
            0.15552706 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.044413086 = queryNorm
            0.32829654 = fieldWeight in 657, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.046875 = fieldNorm(doc=657)
      0.33333334 = coord(1/3)
  0.5 = coord(1/2)
    Date
    22. 3.2013 14:05:39
    Source
    Information - Wissenschaft und Praxis. 64(2013) H.1, S.9-22
  2. Ratzek, W.: Computer Based Training in der Bildungsarbeit : Vom programmierten Lernen bis zum Lernen im Netz (1997) 0.01 
    0.008095975 = product of:
  0.01619195 = sum of:
    0.01619195 = product of:
      0.04857585 = sum of:
        0.04857585 = weight(_text_:29 in 5823) [ClassicSimilarity], result of:
          0.04857585 = score(doc=5823,freq=2.0), product of:
            0.15623134 = queryWeight, product of:
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.044413086 = queryNorm
            0.31092256 = fieldWeight in 5823, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.0625 = fieldNorm(doc=5823)
      0.33333334 = coord(1/3)
  0.5 = coord(1/2)
    Source
    Nachrichten für Dokumentation. 48(1997) H.1, S.25-29
  3. Kübler, S.; Ratzek, W.; Wursthorn, L.; Ziltz, N.: Content is King : Projekt B.I.T.Wiki geht online! (2007) 0.01 
    0.007083978 = product of:
  0.014167956 = sum of:
    0.014167956 = product of:
      0.042503867 = sum of:
        0.042503867 = weight(_text_:29 in 880) [ClassicSimilarity], result of:
          0.042503867 = score(doc=880,freq=2.0), product of:
            0.15623134 = queryWeight, product of:
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.044413086 = queryNorm
            0.27205724 = fieldWeight in 880, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5176873 = idf(docFreq=3565, maxDocs=44218)
              0.0546875 = fieldNorm(doc=880)
      0.33333334 = coord(1/3)
  0.5 = coord(1/2)
    Date
    23.12.2007 19:29:37

Authors

Years

Themes