- Author: Martin Hussels
- Language: German
- Year: 2020
- Author: Dr. Michael Neu (auth.)
- Language: German
- Year: 2004
- Author: Martin Hussels (auth.)
- Language: German
- Year: 2008
- Author: Professor Dr. Thomas Wieske (auth.)
- Language: German
- Year: 2008
- Author: Ralph Jürgen Bährle (auth.)
- Language: German
- Year: 2010
- Author: Dr. iur. Hermann Fenger (auth.)
- Language: German
- Year: 2005
- Author: Prof. Dr. Peter Höflich Frank Weller (auth.)
- Language: German
- Year: 2005
- Author: Stefan Lorenzmeier Dr. Christian Rohde (auth.)
- Language: German
- Year: 2005
- Author: Joachim Gruber
- Language: German
- Year: 2019
- Author: Ralph Jürgen Bährle (auth.)
- Language: German
- Year: 2017