- Author: Odd Einar Haugen (editor), Astrid Van Nahl (editor)
- Language: German
- Year: 2007
- Author: Wilhelm Heizmann (editor), Astrid van Nahl (editor)
- Language: German
- Year: 2003
- Author: Wolfgang Krause (editor), Heinrich Beck (editor), Klaus Düwel (editor), Michael Job (editor), Astrid van Nahl (editor)
- Language: German
- Year: 2013
- Author: Günter Neumann (editor), Heinrich Hettrich (editor), Astrid van Nahl (editor)
- Language: German
- Year: 2008
- Author: Astrid van Nahl (editor), Lennart Elmevik (editor), Stefan Brink (editor)
- Language: German
- Year: 2004