

Reproduction of portrait of Russian mathematician Nikolai Lobachevsky (1792-1856).
- Categories: Science & Technology, Arts, Culture & Entertainment
- Location: Moscow, Russia
- Event date: 01.01.1970
- Date published: 08.08.2009
- Author: RIA Novosti
- Credit: Sputnik
- Source: Sputnik
- Original: A70-2544, 6x9 slide
- Media: JPEG, 3544x3803px, 12.7Mb