- Author: Burkhard Heer
- Language: English
- Year: 2019
- Author: Dr. Burkhard Heer (auth.)
- Language: German
- Year: 1997
- Author: Professor Burkhard Heer Professor Alfred Maußner (auth.)
- Language: English
- Year: 2005
- Author: Burkhard Heer Alfred Maussner
- Language: English
- Year: 2005
- Author: Burkhard Heer Alfred Maußner
- Language: English
- Year: 2005
- Author: Burkhard Heer Alfred Maußner (auth.)
- Language: English
- Year: 2009
- Author: Burkhard Heer Alfred Maußner
- Language: English
- Year: 2005
- Author: Burkhard Heer Alfred Maußner
- Language: English
- Year: 2005
- Author: Burkhard Heer
- Language: English
- Year: 2005