Published on in Vol 1, No 2 (2018): Jul-Dec
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/11825, first published
.
1 Chair of Communication Science, Human-Computer Interaction Center, Rheinisch-Westfälische Technische Hochschule Aachen University, Aachen, Germany
*all authors contributed equally