- Author: Jens Richard Giersdorf, Frank Weigand
- Language: German
- Year: 2014
- Author: Susan Manning, Sabine Huschka, Lucia Ruprecht, Maaike Bleeker, Franz Anton Cramer, Kate Elswit, Susanne Franco, Susan Funkenstein, Jens Richard Giersdorf, Yvonne Hardt
- Language: English
- Year: 2012