- Author: Wernicke Julian
- Language: German
- Year: 2022
- Author: Theurl Theresia
- Language: German
- Year: 2013
- Author: Strippelmann Hagen
- Language: German
- Year: 2016
- Author: Möller Reinhard
- Language: German
- Year: 2006
- Author: Lameyer Johannes
- Language: German
- Year: 1978
- Author: Julian Reidy
- Language: German
- Year: 2012
- Author: Kristin Elizabeth Gager
- Language: English
- Year: 2014
- Author: Gaudence Megaro
- Language: English
- Year: 2019
- Author: Paolo Vian (editor)
- Language: Italian
- Year: 1990