Sommer, Ann-Katrin
Falcenberg, Mathias
Ljepoja, Bojan
Fröhlich, Thomas
Arnold, Georg J.
Wagner, Ernst
Roidl, Andreas
Funding for this research was provided by:
Hanss-Seidel-Stiftung
Deutsche Forschungsgemeinschaft (SFB 1032)
Article History
Received: 1 February 2019
Accepted: 7 October 2019
First Online: 29 October 2019
Competing interests
: The authors declare no competing interests.