Walravens, H.: ISBN - International Standard Book Number : bibliography ; literature on the ISBN and ISMN (International Standard Music Number) from all over the world : compiled and with a review about 40 years ISBN = ISBN - Internationale Standard Buchnummer (2011)
0.00
8.173384E-4 = product of:
0.004086692 = sum of:
0.004086692 = weight(_text_:a in 3036) [ClassicSimilarity], result of:
0.004086692 = score(doc=3036,freq=2.0), product of:
0.053464882 = queryWeight, product of:
1.153047 = idf(docFreq=37942, maxDocs=44218)
0.046368346 = queryNorm
0.07643694 = fieldWeight in 3036, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.153047 = idf(docFreq=37942, maxDocs=44218)
0.046875 = fieldNorm(doc=3036)
0.2 = coord(1/5)
