- Author: Hilbert D. Cohn-Vossen S.
- Language: German
- Year: 1932
Algebra
djvu
- Author: P. M. Cohn
- Language: English
- Year: 1982
Difference algebra
djvu
- Author: Richard M. Cohn
- Language: English
- Year: 1965
- Author: Кон П. (Cohn P.M.)
- Language: Русский
- Year: 1975
- Author: Felix Klein Richard Courant Otto Neugebauer Stefan Cohn-Vossen
- Language: German
- Year: 1979