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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)
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5.502482 = weight(theme_ss:Retrievalstudien in 3114) [ClassicSimilarity], result of: 5.502482 = fieldWeight in 3114, product of: 1.0 = tf(freq=1.0), with freq of: 1.0 = termFreq=1.0 5.502482 = idf(docFreq=489, maxDocs=44218) 1.0 = fieldNorm(doc=3114)
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- Retrievalstudien