The economic role of investor relations in different legal and financial systems
empirical evidence from Germany and the UKWuppertal, September 2017
Essays in empirical asset pricing and behavioral finance
Wuppertal, June 2021

European foreign policy - A new framework for analysis
Wuppertal, July 2016
Explaining individual differences in workplace commitments
the role of residual bonds and commitment propensity ; [kumulative Dissertation]2012
