Stressler, Timo
Eisele, Thomas
Ewert, Jacob
Kranz, Bertolt
Fischer, Lutz
Funding for this research was provided by:
German Federal Ministry of Economics and Technology (AIF/FEI Project No. 16541 N)
Article History
Received: 12 June 2018
Revised: 23 July 2018
Accepted: 28 July 2018
First Online: 7 August 2018
Compliance with ethics standards
:
: The authors declare that there are no conflicts of interest regarding the publication of this article.
: This article does not contain any studies with human or animal subjects.