Trudy desi︠a︡tykh i odinnadt︠s︡atykh Chteniĭ, posvi︠a︡shchennykh razrabotke nauchnogo nasledii︠a︡ i razvitii︠u︡ ideĭ K.Ė. T︠S︡iolkovskogo, Kaluga, 1975, 1976 gg

Semen Viktorovich Shukhardin