Title: Trudy Vosʹmykh chteniĭ, posvi͡ashchennykh razrabotke nauchnogo nasledii͡a i razvitii͡u ideĭ K.Ė. T͡Siolkovskogo
Subjects: Space flight, Congresses
People: K. T͡Siolkovskiĭ (1857-1935)