- Author: Dirk Ehlers, Claas Friedrich Germelmann (editors)
- Language: German
- Year: 2023
- Author: Dirk Ehlers (editor), Claas Friedrich Germelmann (editor)
- Language: German
- Year: 2023
- Author: Dirk Ehlers (editor)
- Language: German
- Year: 2014
- Author: Dirk Ehlers (editor), Hermann Pünder (editor)
- Language: German
- Year: 2015
- Author: Hans-Uwe Erichsen (editor), Dirk Ehlers (editor), Martin Burgi (editor), Dirk Ehlers (editor), Bernd Grzeszick (editor), Elke Gurlit (editor), et al. (editor)
- Language: German
- Year: 2006
- Author: Dirk Ehlers (editor), Ulrich Becker (editor), Et al. (editor)
- Language: German
- Year: 2011
- Author: Christian Starck, Wilfried Berg, Bodo Pieroth, Heinz Peter Rill, Dirk Ehlers, Peter Hänni
- Language: German
- Year: 1992
