Tu, C.-H.: Online collaborative learning communities : twenty-one designs to building an online collaborative learning community (2004)
0.01
0.014343265 = product of:
0.05737306 = sum of:
0.05737306 = weight(_text_:c in 4603) [ClassicSimilarity], result of:
0.05737306 = score(doc=4603,freq=2.0), product of:
0.1505424 = queryWeight, product of:
3.4494052 = idf(docFreq=3817, maxDocs=44218)
0.043643 = queryNorm
0.381109 = fieldWeight in 4603, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.4494052 = idf(docFreq=3817, maxDocs=44218)
0.078125 = fieldNorm(doc=4603)
0.25 = coord(1/4)
