McDonald, B.: Field-tested reference materials : a survey of what has worked best (1993)
0.01
0.006657086 = product of:
0.019971257 = sum of:
0.019971257 = product of:
0.05991377 = sum of:
0.05991377 = weight(_text_:29 in 4590) [ClassicSimilarity], result of:
0.05991377 = score(doc=4590,freq=2.0), product of:
0.1541574 = queryWeight, product of:
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.04382351 = queryNorm
0.38865322 = fieldWeight in 4590, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.078125 = fieldNorm(doc=4590)
0.33333334 = coord(1/3)
0.33333334 = coord(1/3)
- Source
- Wilson library bulletin. 67(1993) no.5, S.29-34,117-118