1
by Blasius, Dirk
Published 2005
Vandenhoeck & Ruprecht

2
by Timmer, Karsten
Published 2000
Vandenhoeck & Ruprecht

3
by Masala, Carlo
Published 2018
Nomos Verlagsgesellschaft mbH & Co. KG

4
by Extinction Rebellion Hannover
Published 2019
transcript Verlag