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  1. Robertson, S.: Understanding inverse document frequency : on theoretical arguments for IDF (2004) 11.01 
    11.008321 = weight(object_ss:TF*IDF in 5421) [ClassicSimilarity], result of:
  11.008321 = fieldWeight in 5421, product of:
    1.0 = tf(freq=1.0), with freq of:
      1.0 = termFreq=1.0
    11.008321 = idf(docFreq=1, maxDocs=44421)
    1.0 = fieldNorm(doc=5421)
    Object
    TF*IDF