Vickery, B.C.; Slater, M.; Presanis, A.; Reynolds, R.: Classification in science information : a comparative study undertaken by Aslib for the International Council of Scientific Unions as contribution to the ICSU/Unesco study of the feasibility of a world science information system (UNISIST) (1969)
0.01
0.011943938 = product of:
0.05971969 = sum of:
0.05971969 = weight(_text_:r in 2037) [ClassicSimilarity], result of:
0.05971969 = score(doc=2037,freq=2.0), product of:
0.13607219 = queryWeight, product of:
3.3102584 = idf(docFreq=4387, maxDocs=44218)
0.041106213 = queryNorm
0.4388824 = fieldWeight in 2037, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.3102584 = idf(docFreq=4387, maxDocs=44218)
0.09375 = fieldNorm(doc=2037)
0.2 = coord(1/5)