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- Language: German
- Year: 1997

- Author: Schenk Karl-Ernst
- Language: German
- Year: 1980

- Author: Scheibeler Elke
- Language: German
- Year: 2004

- Author: Sander Günther M.
- Language: German
- Year: 1996

- Author: Saage Richard
- Language: German
- Year: 1999

- Author: Lohmann Torsten
- Language: German
- Year: 1993