- Author: Görgens Alfred
- Language: German
- Year: 1985
- Author: STEWART JONES
- Language: German
- Year: 1983
- Author: STEWART JONES
- Language: German
- Year: 1983
- Author: HARDMAN HEWSON
- Language: German
- Year: 1983
- Author: WREN-HILTON WREN HILTON
- Language: German
- Year: 1983
- Author: Professor Ian Stewart Professor Robin Jones (auth.)
- Language: German
- Year: 1983
- Author: Alfred Görgens Karl-Heinz Koch (auth.)
- Language: German
- Year: 1985
- Author: Ian Stewart Robin Jones (auth.)
- Language: German
- Year: 1984
- Author: Alfred Görgens (auth.)
- Language: German
- Year: 1985
- Author: Karl-Heinz Koch (auth.)
- Language: German
- Year: 1984