Schweiker, Marcel http://orcid.org/0000-0003-3906-4688
Kleber, Michael http://orcid.org/0000-0001-7231-6547
Wagner, Andreas http://orcid.org/0000-0003-4015-236X
Funding for this research was provided by:
Bundesministerium für Wirtschaft und Energie (0335007F)
Article History
Received: 8 May 2019
Accepted: 14 August 2019
First Online: 26 November 2019
Competing interests
: The authors declare no competing interests.