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classification_ss:"370 / 23sdnb"
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classification_ss:"DW 4000"
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classification_ss:"F 211.1"
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classification_ss:"Nbo"
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Lembke, G.; Leipner, I.: ¬Die Lüge der digitalen Bildung : warum unsere Kinder das Lernen verlernen (2018)
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1.0 = *:*, product of: 1.0 = boost 1.0 = queryNorm