- Author: Klaus M. Girardet
- Language: German
- Year: 2010
- Author: Raoul Girardet
- Language: Romanian
- Year: 1997
- Author: Klaus M. Girardet
- Language: German
- Year: 2015
- Author: Jacques Pécheur Jacky Girardet
- Language: French
- Year: 2017
- Author: Jacky Girardet
- Language: French
- Year: 2016
- Author: Edward Girardet
- Language: English
- Year: 1985
- Author: Bree Axel, Girardet Herbert
- Language: English
- Year: 2009
- Author: Geltemeyer Abby M., Girardet Rebecca, Hormann Mark, Lahoti Sheela, McNeese Margaret, Sanders Mark Jason, Toy Eugene, Yetman Robert
- Language: English
- Year: 2012
- Author: Raoul Girardet
- Language: Portuguese
- Year: 1987