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.
Lev Dodin Lev Abramovich Dodin (Russian: Лев Абрамович Додин , born 1944) is a modern Russian theater director, the leader of Saint Petersburg Maly Drama Theater.