- Author: Hans Michelmann
- Language: English
- Year: 2009
- Author: Hans Michelmann (editor), Cristine de Clercy (editor)
- Language: English
- Year: 2006
- Author: Hans Michelmann, Cristine de Clercy
- Language: English
- Year: 2006
- Author: Hans Michelmann
- Language: English
- Year: 2009