Search (1 results, page 1 of 1)

  • × author_ss:"Brakel, P.A. van"
  1. Van der Walt, H.E.A.; Brakel, P.A. van: Method for the evaluation of the retrieval effectiveness of a CD-ROM bibliographic database (1991) 5.50 
    5.498932 = weight(theme_ss:Retrievalstudien in 3113) [ClassicSimilarity], result of:
  5.498932 = fieldWeight in 3113, product of:
    1.0 = tf(freq=1.0), with freq of:
      1.0 = termFreq=1.0
    5.498932 = idf(docFreq=493, maxDocs=44421)
    1.0 = fieldNorm(doc=3113)
    Theme
    Retrievalstudien