1
by Heßler, Martina
Published 2020
Nomos Verlagsgesellschaft mbH & Co. KG

2
by Ahearn, Ariell
Published 2019
MDPI - Multidisciplinary Digital Publishing Institute

3
by Matiaske, Wenzel
Published 2017
Nomos Verlagsgesellschaft mbH & Co. KG