Tenopir, C.; Ennis, L.: ¬The digital reference work of academic libraries (1998)
0.02
0.018771818 = product of:
0.07508727 = sum of:
0.07508727 = weight(_text_:22 in 5170) [ClassicSimilarity], result of:
0.07508727 = score(doc=5170,freq=4.0), product of:
0.19604386 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.055983268 = queryNorm
0.38301262 = fieldWeight in 5170, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0546875 = fieldNorm(doc=5170)
0.25 = coord(1/4)
- Source
- Online. 22(1998) no.4, S.22-28