The behavioral economics of John Maynard Keynes
Wuppertal : Bergische Universität Wuppertal, September 2018
Between facts and perceptions
the area close to school as a context factor in school leadershipWuppertal : Bergische Univ. Wuppertal, 2015A bibliometric based review on social entrepreneurship and its establishment as a field of research
Wuppertal : Bergische Univ. Wuppertal, 2013