- Author: Jakobs Béatrice, Kapp Volker, Lennartz Norbert, Ridder Klaus, Rösch Gertrud M.
- Language: German
- Year: 2015
- Author: Friede Susanne, Jakobs Béatrice, Lennartz Norbert, Ridder Klaus, Rösch Gertrud M., Strosetzki Christoph
- Language: German
- Year: 2016
- Author: Friede Susanne, Jakobs Béatrice, Lennartz Norbert, Ridder Klaus, Rösch Gertrud M., Strosetzki Christoph
- Language: German
- Year: 2017
- Author: Bauer Matthias, Friede Susanne, Ridder Klaus, Rösch Gertrud M., Strosetzki Christoph, Zirker Angelika
- Language: German
- Year: 2019
- Author: Bauer Matthias, Friede Susanne, Jakobs Béatrice, Ridder Klaus, Rösch Gertrud M., Strosetzki Christoph
- Language: German
- Year: 2018