1
by Pütter, Judith Maja
Published 2017
Nomos Verlagsgesellschaft mbH & Co. KG

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

4
by Hoekstra, Arjen Y.
Published 2019
MDPI - Multidisciplinary Digital Publishing Institute

5
by Hujer, Jens
Published 2018
Peter Lang International Academic Publishers