- Author: Reinhard Pohanka
- Language: German
- Year: 2014
- Author: Schiffers Heinrich, Barth Heinrich
- Language: German
- Year: 2013
- Author: Prschewalski Nikolai M., Brennecke Detlef
- Language: German
- Year: 2013
- Author: Pleticha Heinrich, Livingstone David
- Language: German
- Year: 2013