Kelling, Nikolas K.
Sauer, Philipp C.
Gold, Stefan
Seuring, Stefan
Funding for this research was provided by:
Bundesministerium für Bildung und Forschung (01UT140)
Article History
Received: 10 April 2019
Accepted: 3 January 2020
First Online: 6 April 2020
Compliance with Ethical Standards
:
: The authors declare that they have no conflicts of interest.