Title: XXXV nauchnye chtenii︠a︡ posvi︠a︡shchennye razrabotke tvorcheskogo nasledii︠a︡ K.Ė. T︠S︡iolkovskogo, Kaluga, 12-14 senti︠a︡bri︠a︡ 2000 g
Subjects: Congresses, Astronautics
People: K. T︠S︡iolkovskiĭ (1857-1935)