- Author: Prof. Dr. Ulrich Krengel (auth.)
- Language: German
- Year: 2005
- Author: Prof. Dr. Ulrich Krengel (auth.)
- Language: German
- Year: 2003
- Author: Prof. Dr. Ulrich Krengel (auth.)
- Language: German
- Year: 2000
- Author: Prof. Dr. Ulrich Krengel (auth.)
- Language: German
- Year: 2002
- Author: Prof. Dr. Ulrich Krengel (auth.)
- Language: German
- Year: 1998