1
by Umbach, Günter
Published 2013
Gabler Verlag

3
by Umbach, Günter
Published 2014
Springer Fachmedien Wiesbaden

4
by Umbach, Günter
Published 2019
Springer Fachmedien Wiesbaden

5
by Umbach, Günter
Published 2018
Springer Fachmedien Wiesbaden