Authors
Kerstin Schoch
kerstin.schoch@hks-ottersberg.de
University of Applied Sciences and Arts Ottersberg, Witten/Herdecke University
kerstin.schoch@hks-ottersberg.de
© 2021 Kerstin Schoch, Thomas Ostermann, published by University of Białystok
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.