- Author: Marcus Tullius Cicero Wilfried Stroh Karl Bayer
- Language: German
- Year: 2000
- Author: Marcus Tullius Cicero, Karl Bayer
- Language: German
- Year: 2006
- Author: Marcus Tullius Cicero Karl. Bayer
- Language: German, Latin
- Year: 1993
- Author: Marcus Tullius Cicero Karl Bayer Gertrud Bayer
- Language: German, Latin
- Year: 1994
- Author: Platon Karl Bayer
- Language: German
- Year: 2008
- Author: Karl Bayer (editor) J. Götte (editor) M. Götte (editor) Vergil
- Language: Latin, German
- Year: 1995
- Author: M. Tullius Cicero Karl Bayer (ed./tr.)
- Language: Latin, German
- Year: 1993
- Author: M. Tullius Cicero Karl Bayer (ed.) Gertrud Bayer (ed.)
- Language: Latin, German
- Year: 1994
- Author: Marcus Tullius Cicero, Karl Bayer, Gertrud Bayer
- Language: German
- Year: 2006