Hänske, Jana
Hammacher, Tim
Grenkowitz, Franziska
Mansfeld, Martin
Dau, Tung Huy
Maksimov, Pavlo
Friedrich, Christin
Zimmermann, Wolfgang https://orcid.org/0000-0003-4773-5517
Kammerer, Robert
Funding for this research was provided by:
Deutsche Forschungsgemeinschaft (HE 6249/4-1)
Bundesministerium für Wirtschaftliche Zusammenarbeit und Entwicklung (13.1432.7--‐001.00)
Article History
Received: 9 August 2018
Accepted: 31 January 2020
First Online: 25 February 2020
Competing interests
: The authors declare no competing interests.