Heuel, Janis
Friederich, Wolfgang
Funding for this research was provided by:
Europäische Fonds für regionale Entwicklung
Ruhr-Universität Bochum
Article History
Received: 1 March 2022
Accepted: 9 May 2022
First Online: 2 July 2022
Declarations
:
: The authors declare no competing interests.