- Author: Erich Neumann, Ralph Manheim, Martin Liebscher
- Language: English
- Year: 2015
- Author: Erich Neumann, Ralph Manheim, Martin Liebscher
- Language: English
- Year: 2015
- Author: Erich Neumann Ralph Manheim Martin Liebscher
- Language: English, German
- Year: 2015
- Author: Angus Nicholls, Martin Liebscher
- Language: English
- Year: 2010