Adam Smith, the “Adam Smith problem” and his influence
Wuppertal : Bergische Universität Wuppertal, April 2024

European Union initiatives in education and vocational training
the development and impact of the programme approachPaderborn : Univ. Paderborn, Lehrstuhl für Wirtschaftspädagogik, 2002



Tradition meets globalisation
principles and reforms of the German dual system of vocational education ; presented at the Department of Educational Studies, University of Oxford (12 February 2004)Paderborn : Univ. Paderborn, Lehrstuhl für Wirtschaftspädagogik, 2004
