Hafter, R.: ¬The performance of card catalogs : a review of research (1979)
0.06
0.057791512 = product of:
0.115583025 = sum of:
0.061256893 = weight(_text_:library in 3069) [ClassicSimilarity], result of:
0.061256893 = score(doc=3069,freq=2.0), product of:
0.1317883 = queryWeight, product of:
2.6293786 = idf(docFreq=8668, maxDocs=44218)
0.050121464 = queryNorm
0.46481284 = fieldWeight in 3069, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.6293786 = idf(docFreq=8668, maxDocs=44218)
0.125 = fieldNorm(doc=3069)
0.054326132 = product of:
0.108652264 = sum of:
0.108652264 = weight(_text_:22 in 3069) [ClassicSimilarity], result of:
0.108652264 = score(doc=3069,freq=2.0), product of:
0.17551683 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.050121464 = queryNorm
0.61904186 = fieldWeight in 3069, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.125 = fieldNorm(doc=3069)
0.5 = coord(1/2)
0.5 = coord(2/4)
- Date
- 3.10.2000 20:48:22
- Source
- Library research. 1(1979), S.199-222