Butschart, I.C.; Fothergill, R.: Non-book materials in libraries : a practical guide (1990)
0.03
0.033839423 = product of:
0.101518266 = sum of:
0.101518266 = product of:
0.20303653 = sum of:
0.20303653 = weight(_text_:dc20 in 1709) [ClassicSimilarity], result of:
0.20303653 = score(doc=1709,freq=4.0), product of:
0.34618184 = queryWeight, product of:
7.5072327 = idf(docFreq=65, maxDocs=44218)
0.04611311 = queryNorm
0.58650255 = fieldWeight in 1709, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
7.5072327 = idf(docFreq=65, maxDocs=44218)
0.0390625 = fieldNorm(doc=1709)
0.5 = coord(1/2)
0.33333334 = coord(1/3)
- Classification
- 025.1/7 / dc20
- DDC
- 025.1/7 / dc20