- Author: Heinrich Biltz (editor), Wilhelm Klemm (editor), Werner Fischer (editor)
- Language: German
- Year: 1946
- Author: Heinrich Biltz
- Language: German
- Year: 1916
- Author: Heinrich Biltz, William T. Hall, Joseph W. Phelan
- Language: English
- Year: 1909
- Author: Heinrich Biltz
- Language: German
- Year: 1909
- Author: Heinrich Biltz
- Language: German
- Year: 1900
- Author: Heinrich Biltz (editor), Wilhelm Klemm (editor), Werner Fischer (editor)
- Language: German
- Year: 1966
- Author: Heinrich Biltz
- Language: German
- Year: 1911
- Author: Heinrich Biltz (editor), Wilhelm Klemm (editor)
- Language: German
- Year: 1971
- Author: Heinrich Biltz
- Language: German
- Year: 1898
- Author: Heinrich Biltz (editor), Wilhelm Klemm (editor), Werner Fischer (editor)
- Language: German
- Year: 1958