- Author: Cicero Olof Gigon Laila Straume-Zimmermann
- Language: German
- Year: 1996
- Author: Marcus Tullius Cicero Olof Gigon Laila Straume-Zimmermann
- Language: German, Latin
- Year: 2002
De Natura Deorum
pdf
- Author: Cicero, Olof Gigon Laila Straume-Zimmermann
- Language: German, Latin
- Year: 2013