- Author: Eberhard Passarge
- Language: English
- Year: 2017
- Author: Eberhard Passarge
- Language: English
- Year: 2017
- Author: Eberhard Passarge
- Language: English
- Year: 2012
- Author: Eberhard Passarge
- Language: English
- Year: 2006
- Author: Eberhard Passarge
- Language: English
- Year: 2001
- Author: Eberhard Passarge
- Language: English
- Year: 2001
- Author: Eberhard Passarge
- Language: German
- Author: Eberhard Passarge
- Language: English
- Year: 2006
- Author: Eberhard Passarge
- Language: English
- Year: 2007