- Author: Johannes C. D. Zahn
- Language: German
- Year: 1976
- Author: Johannes C. D. Zahn, Ekkard Eberding, Dietmar Ehrlich
- Language: German
- Year: 1986
- Author: Dietmar Ehrlich, Gregor Haas, Johannes C.D. Zahn
- Language: German
- Year: 2009
- Author: Johannes C. D. Zahn (editor)
- Language: German
- Year: 1937
Börsenreform
pdf
- Author: Dr. Johannes C. D. Zahn (auth.)
- Language: German
- Year: 1970