Roll, U.: Informationsangebot und Informationsnachfrage zu ausgewählten Gebieten der Ökologie und des Umweltschutzes (2004)
0.01
0.007818179 = product of:
0.04690907 = sum of:
0.04690907 = weight(_text_:und in 4631) [ClassicSimilarity], result of:
0.04690907 = score(doc=4631,freq=4.0), product of:
0.09675359 = queryWeight, product of:
2.216367 = idf(docFreq=13101, maxDocs=44218)
0.043654136 = queryNorm
0.4848303 = fieldWeight in 4631, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
2.216367 = idf(docFreq=13101, maxDocs=44218)
0.109375 = fieldNorm(doc=4631)
0.16666667 = coord(1/6)