Sergei Lvovich Sobolev died on January 3, 1989 at the age of 80.
Sergei Brushko died in 2000.
Sergei Rozanov died in 1937.
Sergei Uralov died on December 10, 1951.
Sergei Bartenev died on January 18, 1966.
Sergei Gurzo died on September 19, 1974.
Sergei Lyapunov was born on 1859-11-30.
Prokopy Lyapunov died in 1611.
Mikhail Lyapunov died in 1868.
Alexey Lyapunov died on 1973-06-23.
Aleksandr Mikhailovich Lyapunov died on November 3, 1918 at the age of 61.
Mikhail Lyapunov was born in 1820.
Aleksandr Lyapunov was born on June 6, 1857.
Aleksandr Lyapunov was born on June 6, 1857.
Alexey Lyapunov was born on 1911-09-25.
Aleksandr Mikhailovich Lyapunov was born on June 6, 1857.
Aleksandr Mikhailovich Lyapunov was born on June 6, 1857.
Aleksandr Mikhailovich Lyapunov died on November 3, 1918 at the age of 61.