Author: Chtenii︠a︡, posvi︠a︡shchennye razrabotke nauchnogo nasledii︠a︡ i razvitii︠u︡ ideĭ K.Ė. T︠S︡iolkovskogo (21st 1986 Kaluga, Kaluzhskai͡a oblastʹ, Russia)