
- Author: Peter Allan Hansen (editor)
- Language: German
- Year: 2005

- Author: Peter A. Hansen (editor)
- Language: German
- Year: 1989

- Author: Peter A. Hansen (editor)
- Language: German
- Year: 1983

- Author: Peter A. Hansen (editor)
- Language: German
- Year: 1989

- Author: Peter Allan Hansen (Editor)
- Language: English
- Year: 2005