- Author: Michael Grüttner
- Language: German
- Year: 2015
- Author: Michael Grüttner
- Language: German
- Year: 1984
- Author: John Connelly (editor), Michael Grüttner (editor)
- Language: English
- Year: 2005
- Author: Michael Grüttner
- Language: German
- Year: 1995
- Author: John Connelly Michael Grüttner (eds.)
- Language: English
- Year: 2005