Schickler, Marc
Reichert, Manfred
Geiger, Philip
Winkler, Jens
Funk, Thomas
Weilbach, Micha
Pryss, RĂ¼diger
Article History
Received: 30 December 2019
Accepted: 15 April 2020
First Online: 4 June 2020
Compliance with ethical standards
:
: Authors R.P. and M.S. have received financial support for consultation services from the CMCityMedia GmbH.