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Sears' list of subject headings (2007) 10.09

10.087449 = weight(ddc_ss:025.4/9 / dc22 in 4617) [ClassicSimilarity], result of:
  10.087449 = fieldWeight in 4617, product of:
    1.0 = tf(freq=1.0), with freq of:
      1.0 = termFreq=1.0
    10.087449 = idf(docFreq=4, maxDocs=44218)
    1.0 = fieldNorm(doc=4617)

Classification: 025.4/9 / dc22
Ddc: 025.4/9 / dc22

Sears' list of subject headings (2010) 10.09

10.087449 = weight(ddc_ss:025.4/9 / dc22 in 4618) [ClassicSimilarity], result of:
  10.087449 = fieldWeight in 4618, product of:
    1.0 = tf(freq=1.0), with freq of:
      1.0 = termFreq=1.0
    10.087449 = idf(docFreq=4, maxDocs=44218)
    1.0 = fieldNorm(doc=4618)

Classification: 025.4/9 / dc22
Ddc: 025.4/9 / dc22