Kto byl pervym? /
Volk, S.(Sigizmund),1911-
Mi︠u︡nkhen : Izd. T︠S︡entralʹnogo obʺedinenii︠a︡ politicheskikh ėmigrantov iz SSSR (T︠S︡OPĖ),
1961.
In Russian; romanized record.
Gagarin, Yuri Alekseyevich, 1934-1968.
Artificial satellites, Russian.
Manned space flight.