- Author: Stavro Skendi
- Language: English
- Year: 2015
- Author: Walter Hieber
- Language: German
- Year: 1929
- Author: Artur Rosenthal
- Language: German
- Year: 1929
- Author: Richard Baldus
- Language: German
- Year: 1929
- Author: Ludwig Rüger
- Language: German
- Year: 1929
- Author: Friedrich Gruber (editor), Heinrich Liebmann (editor)
- Language: German
- Year: 1900
- Author: Wilhelm Deecke
- Language: German
- Year: 1929
- Author: August Heisenberg
- Language: German
- Year: 1929
- Author: Carl von Kraus
- Language: German
- Year: 1929