1
by Grunwald, Klaus
Published 2018
Nomos Verlagsgesellschaft mbH & Co. KG

2
by Heßler, Martina
Published 2020
Nomos Verlagsgesellschaft mbH & Co. KG

3
by Schneider, Erik
Published 2018
transcript Verlag

4
by Baltes-Löhr, Christel
Published 2018
transcript Verlag