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classification_ss:"All B 91 / Elektronische Publikationen"
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Reference and information services : an introduction (1995)
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1.0 = *:*, product of: 1.0 = boost 1.0 = queryNorm
classification_ss:"All B 91 / Elektronische Publikationen"
1.0 = *:*, product of: 1.0 = boost 1.0 = queryNorm