Kimberley, R.: Towards the end user : an overview of ISI services (1993)
0.02
0.016737059 = product of:
0.083685294 = sum of:
0.083685294 = weight(_text_:r in 6207) [ClassicSimilarity], result of:
0.083685294 = score(doc=6207,freq=2.0), product of:
0.14300863 = queryWeight, product of:
3.3102584 = idf(docFreq=4387, maxDocs=44218)
0.043201655 = queryNorm
0.5851765 = fieldWeight in 6207, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.3102584 = idf(docFreq=4387, maxDocs=44218)
0.125 = fieldNorm(doc=6207)
0.2 = coord(1/5)