- Author: Stefan Jordan
- Language: German
- Year: 2005
- Author: Maza Sarah C
- Language: English
- Year: 2017
- Author: Curtin Philip D
- Language: English
- Year: 2005
- Author: Digan Katie, Kerns Diane, Rüsen Jörn
- Language: English
- Year: 2019
- Author: Jordan Stefan
- Language: German
- Year: 2018
- Author: Berghahn Volker Rolf, Lässig Simone
- Language: English
- Year: 2008
- Author: Brewer Stewart
- Language: English
- Year: 2016
- Author: Peter Claus John Marriott
- Language: English
- Year: 2017
- Author: José Carlos Reis
- Language: Portuguese
- Year: 1996