Luor, T.; Johanson, R.E.; Lu, H.-P.; Wu, L.-l.: Trends and lacunae for future computer assisted learning (CAL) research : an assessment of the literature in SSCI journals from 1998-2006 (2008)
0.03
0.03234974 = product of:
0.12939896 = sum of:
0.12939896 = weight(_text_:assisted in 1879) [ClassicSimilarity], result of:
0.12939896 = score(doc=1879,freq=2.0), product of:
0.28895715 = queryWeight, product of:
6.7552447 = idf(docFreq=139, maxDocs=44218)
0.04277523 = queryNorm
0.44781366 = fieldWeight in 1879, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
6.7552447 = idf(docFreq=139, maxDocs=44218)
0.046875 = fieldNorm(doc=1879)
0.25 = coord(1/4)