Philipp, Robert http://orcid.org/0000-0001-7649-0235
Funding for this research was provided by:
Hochschule Wismar, University of Applied Sciences: Technology, Business and Design
Article History
Received: 31 January 2020
Revised: 6 April 2020
Accepted: 12 May 2020
First Online: 26 May 2020
Conflict of interest
: R. Philipp declares that he has no competing interests.