
- Author: Oliva Solís Hernández Stefan Gandler
- Language: English
- Year: 2016

- Author: Stefan Gandler
- Language: Spanish
- Year: 2013

- Author: Stefan Gandler
- Language: German
- Year: 2008

- Author: Stefan Gandler
- Language: Spanish
- Year: 2009

- Author: Stefan Gandler
- Language: Spanish
- Year: 2007

- Author: Stefan Gandler
- Language: Spanish
- Year: 2008

- Author: Stefan Gandler
- Language: English
- Year: 2015