Funding for this research was provided by:
Bundesministerium für Wirtschaft und Energie (AiF/IGF 18904 N/3)
Bundesministerium für Wirtschaft und Energie (AiF/ZIM ZF4654701ZG8)
Universität Ulm
Article History
Received: 21 January 2021
Accepted: 3 May 2021
First Online: 30 June 2021
Declarations
:
: The authors declare that they have no conflict of interest.