- Author: Erika Spieß, Julia Reif, David Maus, Jutta Gallenmüller-Roschmann
- Language: German
- Year: 2023
- Author: Erika Spieß, Julia Reif, David Maus, Jutta Gallenmüller-Roschmann
- Language: German
- Year: 2023
- Author: Erika Spieß
- Language: German
- Year: 2013
- Author: Erika Spieß, Lutz von Rosenstiel
- Language: German
- Year: 2010
- Author: Erika Spieß
- Language: German
- Year: 2014
- Author: Julia A. M. Reif Erika Spieß Katharina F. Pfaffinger
- Language: English
- Year: 2021
- Author: Julia A. M. Reif Erika Spieß Katharina F. Pfaffinger
- Language: English
- Year: 2021
- Author: Erika Spieß.
- Language: German
- Year: 2005
- Author: Julia Reif Erika Spieß Peter Stadler
- Language: German
- Year: 2018
- Author: Erika Spieß
- Language: German
- Year: 2013