1
by Popp, Susanne
Published 2015
PETER LANG LTD International Academic Publishers

2
by Trültzsch-Wijnen, Christine
Published 2017
Nomos Verlagsgesellschaft mbH & Co. KG

3
by Duchkowitsch, Wolfgang
Published 2017
Nomos Verlagsgesellschaft mbH & Co. KG

4
by Altmeppen, Klaus-Dieter
Published 2017
Nomos Verlagsgesellschaft mbH & Co. KG