1
by Güttel, Wolfgang H.
Published 2019
Rainer Hampp Verlag

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

3
by Bartels, Michael
Published 2015
Nomos Verlagsgesellschaft mbH & Co. KG

4
by Nauerth, Werner
Published 2014
Nomos Verlagsgesellschaft mbH & Co. KG