- Author: Joachim Wieland, Christoph Engel, Thomas von Danwitz, Wilfried Fiedler, Gerhard Robbers, Michael Brenner
- Language: German
- Year: 2000
- Author: Ralph Hertwig (editor) Christoph Engel (editor)
- Language: English
- Year: 2021
- Author: Ralph Hertwig, Christoph Engel
- Language: English
- Year: 2021
- Author: Professor Dr. Thomas von Danwitz Professor Dr. Otto Depenheuer Professor Dr. Christoph Engel (auth.)
- Language: German
- Year: 2002
- Author: Gerd Gigerenzer Christoph Engel
- Language: English
- Year: 2006
- Author: Christoph Engel
- Language: English
- Year: 2005