- Author: Gunter Gebauer, Thomas Alkemeyer, Bernhard Boschert, Uwe Flick, Robert Schmidt
- Language: German
- Year: 2015
Das Glas
pdf
- Author: Robert Schmidt
- Language: German
- Year: 1923
Das Glas
pdf
- Author: Robert Schmidt
- Language: German
- Year: 1912
- Author: Robert Schmidt, James Pinder
- Language: English
- Year: 2016