Were Pavel Urysohn and Leonid Levin known for the same type of work?
Leonid Levin Leonid Anatolievich Levin ( ; Russian: Леони́д Анато́льевич Ле́вин ; Ukrainian: Леоні́д Анато́лійович Ле́він ; born November 2, 1948) is a Soviet-American computer scientist.
Robert Lisovskyi Robert Lisovskyi (Ukrainian: "Роберт Антонович Лісовський" ; 29 December 1893 – 28 December 1982) is Ukrainian artist and graphic designer, a follower of Mykhailo Boychuk and Heorhiy Narbut. He was specializing in various forms of graphic arts, particularly printmaking, book illustration, decorative and applied arts, scenography and design.