image is a derivative work of the following images: File:BugaevNV-MatematicheskySbornik1904.jpg licensed with PD-old 2009-10-29T15:17:03Z Bff 360x483 (85940
image is a derivative work of the following images: File:BugaevNV-MatematicheskySbornik1904-2.jpg licensed with PD-old 2009-10-29T15:18:52Z Bff 360x483 (96586
DescriptionBugaevNV-MatematicheskySbornik1904.jpg English: Portrait of Nikolai Bugaev (1837-1903), Russian mathematician and philosopher Русский: Фотопортрет