- Author: Knauff Markus, Spohn Wolfgang
- Language: English
- Author: Spohn Wolfgang
- Language: English
- Year: 2014
- Author: Enskat Rainer, Esfeld Michael-Andreas, Henke Roland, Höffe Otfried, Künne Wolfgang, M. A. Wolfgang Malzkorn, Rudolph Enno, Schönecker Dieter, Spohn Wolfgang, Wolf Ursula
- Language: German
- Year: 2017