Flechsig, Gerd-Uwe http://orcid.org/0000-0001-8407-4506
Funding for this research was provided by:
Hochschule für angewandte Wissenschaften Coburg
Article History
Received: 4 February 2020
Revised: 4 February 2020
Accepted: 6 February 2020
First Online: 2 March 2020