- Author: Frédéric Seyler
- Language: German
- Year: 2016
- Author: Thomas Heinemann (Hrsg.)
- Language: German
- Year: 2020
- Author: Hans Zender
- Language: German
- Year: 2017
- Author: Reyk Albrecht
- Language: German
- Year: 2016
Fortschritt
pdf
- Author: Karl Heinz Hoffmann (Hrsg.), Nikolaus Korber (Hrsg.)
- Language: German
- Year: 2023
- Author: Andreas Domann
- Language: German
- Year: 2017
- Author: Stefanie Thiele
- Language: German
- Year: 2022
- Author: László Tengelyi
- Language: German
- Year: 2016
- Author: Matthias Gillissen
- Language: German
- Year: 2008