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  • × author_ss:"Schweitzer, R."
  • × theme_ss:"Information Gateway"
  • × theme_ss:"Informationsdienstleistungen"
  1. Keßler, C.; Schweitzer, R.: Suchen, was Google nicht findet : Wie sollte ein Recherche-Portal für Oberstufenschüler aussehen? Eine Umfrage gibt Aufschluss (2011) 0.00 
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