Freeman, H.; Rouse, R.; Hilton, A.: Making the most of electronic databases : computer based tutorials for CD-ROM network (1995)
0.02
0.020713374 = product of:
0.062140122 = sum of:
0.062140122 = weight(_text_:electronic in 4092) [ClassicSimilarity], result of:
0.062140122 = score(doc=4092,freq=2.0), product of:
0.20551677 = queryWeight, product of:
3.9095051 = idf(docFreq=2409, maxDocs=44218)
0.052568488 = queryNorm
0.30236036 = fieldWeight in 4092, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9095051 = idf(docFreq=2409, maxDocs=44218)
0.0546875 = fieldNorm(doc=4092)
0.33333334 = coord(1/3)