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

2
by Heimbach-Steins, Marianne
Published 2019
Nomos Verlagsgesellschaft mbH & Co. KG

3
by Richter, Carola
Published 2021
Open Book Publishers

4
by Friedrich, Alexander
Published 2018
Nomos Verlagsgesellschaft mbH & Co. KG

5
by Richter, Philipp
Published 2018
Nomos Verlagsgesellschaft mbH & Co. KG