- Author: Barbara Martin
- Language: German
- Year: 2016
- Author: Ulrich Richtmeyer (editor), Fabian Goppelsröder (editor), Toni Hildebrandt (editor)
- Language: German
- Year: 2014
- Author: Julia Burbulla
- Language: German
- Year: 2015
- Author: Sarah Dornhof (editor), Nanne Buurman (editor), Birgit Hopfener (editor), Barbara Lutz (editor)
- Language: English
- Year: 2018