- Author: Arthur Wiegand
- Language: German
- Year: 1906
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- Language: German
- Year: 1907
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- Language: German
- Year: 1973
- Author: Theodor Leutwein
- Language: German
- Year: 1908
- Author: Max Schmidt
- Language: German
- Year: 1907
- Author: Curt von François
- Language: German
- Year: 1899
- Author: Friedrich von Dincklage-Campe
- Language: German
- Year: 1907