- Author: Irmgard Fees, Andrea Stieldorf
- Language: German
- Year: 2019
- Author: Irmgard Fees, Andrea Stieldorf
- Language: German
- Year: 2021
- Author: Andrea Stieldorf
- Language: German
- Year: 2021
- Author: Andrea Stieldorf, Ursula Mättig, Ines Neffgen
- Language: German
- Year: 2018
- Author: Andrea Stieldorf
- Language: German
- Year: 2021
- Author: Andrea Stieldorf (editor)
- Language: German
- Year: 2019
- Author: Andrea Stieldorf (editor)
- Language: German
- Year: 2019