Time to BRIC it?
Internationalization of European family firms in Europe, North America and the BRIC countriesWuppertal : Bergische Univ. Wuppertal, 2013
Who does the shopping?
German time use evidence, 1996 - 2009Wuppertal : Bergische Univ. Wuppertal, 2013


The innovation effect of the energy transition in Germany
an exploratory empirical analysis of firms and their innovation activitiesWuppertal, 2017
Alienation and hybridity
patterns of estrangement in the British novels since the 1950sWuppertal, Juni 2017

European foreign policy - A new framework for analysis
Wuppertal, July 2016


