Testing the Modigliani-Miller theorem directly in the lab
a general equilibrium approachWuppertal : Bergische Univ. Wuppertal, 2009
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
