Tenopir, C.; Neufang, R.: ¬The impact of electronic reference on reference librarians (1992)
0.03
0.025347205 = product of:
0.05069441 = sum of:
0.05069441 = product of:
0.10138882 = sum of:
0.10138882 = weight(_text_:r in 6371) [ClassicSimilarity], result of:
0.10138882 = score(doc=6371,freq=2.0), product of:
0.17326194 = queryWeight, product of:
3.3102584 = idf(docFreq=4387, maxDocs=44218)
0.05234091 = queryNorm
0.5851765 = fieldWeight in 6371, 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=6371)
0.5 = coord(1/2)
0.5 = coord(1/2)