- Author: Niklas Luhmann Dirk Baecker Georg Stanitzek
- Language: German
- Year: 1987
- Author: Niklas Luhmann
- Language: German
- Year: 1992
- Author: Niklas Luhmann
- Language: German
- Year: 1994
- Author: Niklas Luhmann
- Language: Italian
- Year: 1990
- Author: Luhmann Niklas
- Language: English
- Year: 1997
- Author: Luhmann Niklas
- Language: German
- Year: 1995
- Author: Luhmann Niklas
- Language: German
- Year: 2008
- Author: Luhmann Niklas, Hellmann Kai-Uwe (Hrsg.)
- Language: German
- Year: 1996
- Author: Luhmann Niklas, Barrett Rhodes
- Language: English, German
- Year: 2012
- Author: Niklas Luhmann & Rhodes Barrett
- Language: English, German
- Year: 2012