- Author: Martin Neef
- Language: German
- Year: 2005
- Author: Sonja A. J. Neef, Martin Neef, Jason Groves
- Language: English
- Year: 2022
- Author: Martin Neef (editor), Carmen Scherer (editor)
- Language: German
- Year: 2013
- Author: Christina Behme Martin Neef
- Language: English
- Year: 2018
- Author: Christina Behme (editor) Martin Neef (editor)
- Language: English
- Year: 2018
- Author: Sonja Neef Martin Neef (editor)
- Language: English
- Year: 2021