Kretschmann, Jürgen http://orcid.org/0000-0002-1181-3600
Funding for this research was provided by:
Technische Hochschule Georg Agricola
Article History
Received: 24 April 2020
Accepted: 14 July 2020
First Online: 23 July 2020
Compliance with Ethical Standards
:
: The authors declare that they have no conflict of interest.