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classification_ss:"ST 670 (BVB)"
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Mair, D.: E-Learning: das Drehbuch : Handbuch für Medienautoren und Projektleiter (2005)
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1.0 = *:*, product of: 1.0 = boost 1.0 = queryNorm
classification_ss:"ST 670 (BVB)"
1.0 = *:*, product of: 1.0 = boost 1.0 = queryNorm