Ponomarev, Aleksandr Nikolaevich doktor tekhnicheskikh nauk

Pokoriteli neba

Trudy odinnadt︠s︡atykh Chteniĭ, posvi︠a︡shchennykh razrabotke nauchnogo nasledii︠a︡ i razvitii︠u︡ ideĭ K.-Ė. T︠S︡iolkovskogo