Markey, K.; Demeyer, A.N.: ¬The concept of common subject headings in subject outline searching (1989)
0.05
0.052480206 = product of:
0.20992082 = sum of:
0.20992082 = weight(_text_:headings in 964) [ClassicSimilarity], result of:
0.20992082 = score(doc=964,freq=2.0), product of:
0.3262966 = queryWeight, product of:
4.8524013 = idf(docFreq=942, maxDocs=44421)
0.06724436 = queryNorm
0.64334357 = fieldWeight in 964, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.8524013 = idf(docFreq=942, maxDocs=44421)
0.09375 = fieldNorm(doc=964)
0.25 = coord(1/4)