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

2
by Dopheide, Christian
Published 2017
Nomos Verlagsgesellschaft mbH & Co. KG

3
by Biedermann, Hubert
Published 2019
Rainer Hampp Verlag

4
by Liu, Yuqi
Published 2021
Rainer Hampp Verlag

5
by Kongress der Sozialwirtschaft e.V.,
Published 2019
Nomos Verlagsgesellschaft mbH & Co. KG