Li, X.; Thelwall, M.; Kousha, K.: ¬The role of arXiv, RePEc, SSRN and PMC in formal scholarly communication (2015)
0.04
0.036063936 = product of:
0.07212787 = sum of:
0.07212787 = sum of:
0.03675692 = weight(_text_:k in 2593) [ClassicSimilarity], result of:
0.03675692 = score(doc=2593,freq=2.0), product of:
0.18639012 = queryWeight, product of:
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.052213363 = queryNorm
0.19720423 = fieldWeight in 2593, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.0390625 = fieldNorm(doc=2593)
0.03537095 = weight(_text_:22 in 2593) [ClassicSimilarity], result of:
0.03537095 = score(doc=2593,freq=2.0), product of:
0.1828423 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.052213363 = queryNorm
0.19345059 = fieldWeight in 2593, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0390625 = fieldNorm(doc=2593)
0.5 = coord(1/2)
- Date
- 20. 1.2015 18:30:22
