Numminen, P.; Vakkari, P.: Question types in public libraries' digital reference service in Finland : comparing 1999 and 2006 (2009)
0.00
0.0011564007 = product of:
0.0023128013 = sum of:
0.0023128013 = product of:
0.0046256026 = sum of:
0.0046256026 = weight(_text_:e in 2850) [ClassicSimilarity], result of:
0.0046256026 = score(doc=2850,freq=2.0), product of:
0.048544887 = queryWeight, product of:
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.03377341 = queryNorm
0.09528506 = fieldWeight in 2850, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.046875 = fieldNorm(doc=2850)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Language
- e