Energy and material efficiency improvements, compliance strategies, and investments in resource efficiency
a cross-country studyWuppertal : Bergische Univ. Wuppertal, 2015
Energy and material efficiency innovations
the relevance of innovation strategiesWuppertal : Bergische Univ. Wuppertal, 2012Enhanced field emission from metallic surfaces and nanowires
Wuppertal : Berg. Univ. Wuppertal, Fachbereich Mathematik und Naturwiss., Fachgruppe Physik, 2007Entrepreneurship in India
the question of occupational transitionWuppertal : Bergische Univ. Wuppertal, 2010