- Author: Friedrich Schweitzer, Sara Haen, Evelyn Krimmer, Evelyn Krimmer
- Language: German
- Year: 2019
- Author: Friedrich Schweitzer
- Language: German
- Year: 2018
- Author: Jenny Berglund, Bert Roebben, Peter Schreiner, Friedrich Schweitzer
- Language: German
- Year: 2023
- Author: Rudolf Englert, Helga Kohler-Spiegel, Norbert Mette, Elisabeth Naurath, Bernd Schröder, Friedrich Schweitzer
- Language: German
- Year: 2019
- Author: Stefan Altmeyer, Bernhard Grümme, Helga Kohler-Spiegel, Elisabeth Naurath, Bernd Schröder, Friedrich Schweitzer
- Language: German
- Year: 2021
- Author: Rudolf Englert, Helga Kohler-Spiegel, Norbert Mette, Elisabeth Naurath, Bernd Schröder, Friedrich Schweitzer
- Language: German
- Year: 2019
- Author: Rudolf Englert, Friedrich Schweitzer
- Language: German
- Year: 2017
Schöpfung
pdf
- Author: Stefan Altmeyer, Rudolf Englert, Helga Kohler-Spiegel, Elisabeth Naurath, Bernd Schröder, Friedrich Schweitzer
- Language: German
- Year: 2018
- Author: Friedrich Schweitzer
- Language: German
- Year: 2020