- Author: Prof. Dr. Klaus North (auth.)
- Language: German
- Year: 2005
- Author: Prof. Dr. Klaus North (auth.)
- Language: German
- Year: 2002
- Author: Prof. Dr. Klaus North (auth.)
- Language: German
- Year: 1999
- Author: Prof. Dr. Klaus North (auth.)
- Language: German
- Year: 1998