McDonald, S.; Taylor, L.; Adams, C.: Searching the right database : a comparison of four databases for psychiatry journals (1999)
0.02
0.02095752 = product of:
0.04191504 = sum of:
0.04191504 = product of:
0.08383008 = sum of:
0.08383008 = weight(_text_:c in 6786) [ClassicSimilarity], result of:
0.08383008 = score(doc=6786,freq=2.0), product of:
0.15711682 = queryWeight, product of:
3.4494052 = idf(docFreq=3817, maxDocs=44218)
0.045548957 = queryNorm
0.5335526 = fieldWeight in 6786, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.4494052 = idf(docFreq=3817, maxDocs=44218)
0.109375 = fieldNorm(doc=6786)
0.5 = coord(1/2)
0.5 = coord(1/2)