- Author: Tim A. Osswald, Erwin Baur, Natalie Rudolph
- Language: English
- Year: 2019
- Author: Erwin Baur und Eugen Fischer und Fritz Lenz
- Language: German
- Year: 1936
- Author: Erwin Baur und Eugen Fischer und Fritz Lenz
- Language: German
- Year: 1932
- Author: Erwin Baur und Eugen Fischer und Fritz Lenz
- Language: German
- Year: 1921
- Author: Erwin Baur Katja Ruhrberg William Woishnis
- Language: English
- Year: 2016
- Author: Erwin Baur Katja Ruhrberg William Woishnis
- Language: English
- Year: 2016
- Author: Erwin Baur (auth.)
- Language: German
- Year: 1934
- Author: Dr.-Ing. Erwin Baur (auth.)
- Language: German
- Year: 1985