1
by Friedrich, Alexander
Published 2017
Nomos Verlagsgesellschaft mbH & Co. KG

2
by Friedrich, Alexander
Published 2018
Nomos Verlagsgesellschaft mbH & Co. KG

3
by Visvizi, Anna
Published 2020
MDPI - Multidisciplinary Digital Publishing Institute

4
by Richter, Philipp
Published 2018
Nomos Verlagsgesellschaft mbH & Co. KG