- Author: Ernst Mach
- Language: German
- Year: 1903
- Author: Rudol Fick
- Language: German
- Year: 1904
- Author: Rudol Fick
- Language: German
- Year: 1911
- Author: Rudol Fick
- Language: German
- Year: 1910
- Author: Wolfgang Brandenburger
- Language: German
- Year: 1982
- Author: Kalman Vanky
- Language: English
- Year: 1994
- Author: Johannes Thiele
- Language: German
- Year: 1929
- Author: Else Conrad
- Language: German
- Year: 1908
- Author: Dietrich Schäfer
- Language: German
- Year: 1885