Studwell, W.E.; Rast, E.; Felmlee, C.: Library of Congress Subject Heading period subdivisions for Africa : some proposed additions (1984)
0.00
0.0028207877 = product of:
0.008462363 = sum of:
0.008462363 = product of:
0.016924726 = sum of:
0.016924726 = weight(_text_:of in 328) [ClassicSimilarity], result of:
0.016924726 = score(doc=328,freq=2.0), product of:
0.06997118 = queryWeight, product of:
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.04474555 = queryNorm
0.24188137 = fieldWeight in 328, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.109375 = fieldNorm(doc=328)
0.5 = coord(1/2)
0.33333334 = coord(1/3)
