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Trudy devi͡atykh Chteniĭ, posvi͡ashchennykh razrabotke nauchnogo nasledii͡a i razvitii͡u ideĭ K.Ė. T͡Siolkovskogo

By Chtenii͡a, posvi͡ashchennye razrabotke nauchnogo nasledii͡a i razvitii͡u ideĭ K.Ė. T͡Siolkovskogo (9th 1974 Kaluga, Kaluzhskai͡a oblastʹ, Russia)