- Author: Heinz Mehlhorn Birgit Mehlhorn
- Language: German
- Year: 2020
- Author: Birgit Mehlhorn, Heinz Mehlhorn
- Language: German
- Year: 1990
- Author: Birgit Mehlhorn Professor Dr. Heinz Mehlhorn (auth.)
- Language: German
- Year: 1990
- Author: Birgit Mehlhorn Prof. Dr. Heinz Mehlhorn (auth.)
- Language: German
- Year: 1996
- Author: Birgit Mehlhorn Prof. Dr. Heinz Mehlhorn (auth.)
- Language: German
- Year: 1993
- Author: Birgit Mehlhorn Prof.Dr. Heinz Mehlhorn (auth.)
- Language: German
- Year: 1992
- Author: Birgit Mehlhorn Prof. Dr. Heinz Mehlhorn (auth.)
- Language: German
- Year: 1992
- Author: Birgit Mehlhorn Prof. Dr. Heinz Mehlhorn Dr. Günter Schmahl (auth.)
- Language: German
- Year: 1992