

Portrait of trailblazing Russian mathematician Nikolai Lobachevsky (1792-1856).
- Categories: Science & Technology
- Location: Russia
- Event date: 10.04.1970
- Date published: 01.01.2007
- Author: RIA Novosti
- Credit: Sputnik
- Source: Sputnik
- Original: А70-2544, 6x9 slide
- Media: JPEG, 2891x3543px, 2.7Mb