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  • × classification_ss:"54.88 (Computer in der Freizeit)"
  • × classification_ss:"300"
  1. Spitzer, M.: Digitale Demenz : wie wir uns und unsere Kinder um den Verstand bringen (2012) 0.01 
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    BK
    77.53 (Entwicklungspsychologie: Allgemeines)
    Classification
    77.53 (Entwicklungspsychologie: Allgemeines)