- Author: Wilfried Barner (editor), Christine Lubkoll (editor), Ernst Osterkamp (editor), Ulrich Raulff (editor)
- Language: German
- Year: 2014
- Author: Wilfried Barner (editor), Christine Lubkoll (editor), Ernst Osterkamp (editor), Ulrich Raulff (editor)
- Language: German
- Year: 2015
- Author: Wilfried Barner (editor), Christine Lubkoll (editor), Ernst Osterkamp (editor), Ulrich Raulff (editor)
- Language: German
- Year: 2015
- Author: Wilfried Barner (editor), Christine Lubkoll (editor), Ernst Osterkamp (editor), Ulrich Raulff (editor)
- Language: German
- Year: 2014