- Author: Gerhard Rohlfs
- Language: German
- Year: 1875
- Author: Gerhard Rohlfs
- Language: German
- Year: 1881
- Author: Gerhard Rohlfs
- Language: German
- Year: 2016
- Author: Gerhard Rohlfs.
- Language: Italian
- Year: 1968
- Author: Gerhard Rohlfs.
- Language: Italian
- Year: 1968
- Author: Gerhard Rohlfs.
- Language: Italian
- Year: 1968