- Author: Ute Daniel, Axel Schildt
- Language: German
- Year: 2010
- Author: Axel Schildt (editor), Detlef Siegfried (editor)
- Language: English
- Year: 2005
- Author: Detlef Siegfried, Axel Schildt, Professor Jean-Luc Pinol, Professor Richard Rodger
- Language: English
- Year: 2005
- Author: Axel Schildt
- Language: German
- Year: 2007
- Author: Axel Schildt
- Language: German
- Year: 1999
- Author: Axel Schildt Detlef Siegfried
- Language: English
- Year: 2006
- Author: Axel Schildt Detlef Siegfried
- Language: English
- Year: 2005
- Author: Axel Schildt
- Language: German
- Year: 2007