Bongartz, Philipp http://orcid.org/0000-0001-6600-4205
Funding for this research was provided by:
Klaus Tschira Stiftung
Article History
Received: 19 November 2018
Accepted: 11 April 2019
First Online: 9 May 2019
Ethics approval and consent to participate
: Not applicable.
: Not applicable.
: The authors declare that they have no competing interests.
: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.