1
by Bartels, Michael
Published 2015
Nomos Verlagsgesellschaft mbH & Co. KG

2
by Grunwald, Klaus
Published 2018
Nomos Verlagsgesellschaft mbH & Co. KG

3
by Nauerth, Werner
Published 2014
Nomos Verlagsgesellschaft mbH & Co. KG

4
by Biedermann, Hubert
Published 2019
Rainer Hampp Verlag