- Author: Ludwig Huber
- Language: English
- Author: Martín Tanaka Patricia Zárate Ludwig Huber Jorge Morel
- Language: Spanish
- Year: 2011
- Author: Ludwig Huber, Raúl Hernández Asensio, Rómulo Zúñiga
- Language: Spanish
- Year: 2011
- Author: Ludwig Huber
- Language: Spanish
- Year: 2002
- Author: Ludwig Huber
- Language: Spanish
- Year: 2008
- Author: Ludwig Huber Gabi Reinmann
- Language: German
- Year: 2019
- Author: Ludwig Huber
- Language: English
- Year: 2002