Sergei Navashin died in 1930.
Sergei Navashin was born in 1857.
Sergei Navashin discovered double fertilisation in plants.
Sergei Nolbandov died in 1971.
Sergei Agapitov died in 1996.
Sergei Soldatov died in 2003.
Sergei Tretyakov died in 1937.
Sergei Bongart died in 1985.
Sergei Prokopovich died in 1955.
Sergei Protopopov died in 1954.
Sergei Yushenkov died in 2003.
Sergei Orekhov died in 1998.
Sergei Toropov died in 1990.