- Author: Roxane Richter, Thomas Flowers, Elias Bongmba
- Language: English
- Year: 2017
- Author: Susan Richter, Thomas Maissen, Manuela Albertone
- Language: English
- Year: 2019
- Author: Humboldt Alexander von, Richter Thomas
- Language: German
- Year: 2015
- Author: Thomas Richter Thomas Wick
- Language: German
- Year: 2016
- Author: Richter Thomas
- Language: English
- Year: 2017
- Author: Eckart Richter Thomas Feyerabend
- Language: English
- Year: 2004
- Author: Eckart Richter Thomas Feyerabend
- Language: German
- Year: 1996
- Author: Eckart Richter Thomas Feyerabend (auth.)
- Language: German
- Year: 2002