- Author: Clemens Büter
- Language: German
- Year: 2020
- Author: Clemens Büter (auth.)
- Language: German
- Year: 2010
- Author: Clemens Büter (auth.)
- Language: German
- Year: 2017
- Author: Prof. Dr. rer. pol. Clemens Büter (auth.)
- Language: German
- Year: 2007
- Author: Clemens Büter (auth.)
- Language: German
- Year: 2013
- Author: Clemens Büter (auth.)
- Language: German
- Year: 2010
- Author: Clemens Büter
- Language: German
- Year: 2009