21
by Knauber, Bernt
Published 2020
Academia-Verlag

25
by Schleichert, Hubert
Published 2021
Klostermann

26
by Friedrich, Alexander
Published 2021
Nomos Verlagsgesellschaft mbH & Co. KG

32
by Landfester, Rüdiger
Published 2021
Academia-Verlag

38
by Hartung, Gerald
Published 2022
Verlag Karl Alber