Park, J.-r.; Li, G.; Burger, A.: Opening and closing rituals of the virtual reference service of the Internet Public Library (2010)
0.00
6.990883E-4 = product of:
0.0020972649 = sum of:
0.0020972649 = weight(_text_:s in 4153) [ClassicSimilarity], result of:
0.0020972649 = score(doc=4153,freq=2.0), product of:
0.043647945 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.04014573 = queryNorm
0.048049565 = fieldWeight in 4153, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.03125 = fieldNorm(doc=4153)
0.33333334 = coord(1/3)
- Source
- Journal of documentation. 66(2010) no.6, S.807-823
