- Author: Elisa Liepsch (editor), Julian Warner (editor)
- Language: German
- Year: 2018
- Author: Julian Warner
- Language: English
- Author: Julian Warner
- Language: English
- Year: 1994
- Author: Julian Warner
- Language: English
- Year: 2009
- Author: Julian Warner
- Language: English
- Year: 1994
- Author: Julian Warner
- Language: English
- Year: 2010