- Author: Ulrich Knaack (editor), Eddie Koenders (editor)
- Language: English
- Year: 2018
- Author: Maarten Meijs, Ulrich Knaack
- Language: English
- Year: 2009
- Author: Ulrich Knaack, Tillmann Klein, Marcel Bilow, Thomas Auer
- Language: English
- Year: 2010
- Author: Maarten Meijs, Ulrich Knaack
- Language: German
- Year: 2012
- Author: Ulrich Knaack, Tillmann Klein, Marcel Bilow, Thomas Auer
- Language: English
- Year: 2014
- Author: Ulrich Knaack (editor), Rebecca Bach (editor), Samuel Schabel (editor)
- Language: German
- Year: 2022
- Author: Ulrich Knaack, Tillmann Klein, Marcel Bilow, Thomas Auer
- Language: German
- Year: 2014
- Author: Ulrich Knaack (editor), Eddie Koenders (editor)
- Language: German
- Year: 2018
- Author: Ulrich Knaack, Sharon Chung-Klatte, Reinhard Hasselbach
- Language: German
- Year: 2012
- Author: Ulrich Knaack, Sharon Chung-Klatte, Reinhard Hasselbach
- Language: English
- Year: 2012