Treffer 1 - 1 Treffer von 1 für Suche '"Gradus , R H J M , Dijkgraaf , E & de Jong , M 2013 , ' Competition and educational quality: evidence from the Netherlands ' , Empirica , vol. 40 , no. 4 , pp. 607-634 . https://doi.org/10.1007/s10663-012-9195-6"'Weiter zum Inhalt