- Author: Kerstin Jürgens, Reiner Hoffmann, Christina Schildmann, Hans-Böckler-Stiftung
- Language: German
- Year: 2017
- Author: Martin Brussig, Matthias Knuth, Sarah Mümken, Hans-Böckler-Stiftung
- Language: German
- Year: 2016
- Author: Erik Poppe (editor), Jörg Longmuß (editor), Hans-Böckler-Stiftung (editor)
- Language: German
- Year: 2019
- Author: Karl Christian Führer, Hans-Böckler-Stiftung
- Language: German
- Year: 2017