Analysis of information sources in references of the Wikipedia article "Безракетний космічний запуск" in Ukrainian language version.
The concept was first described in 1895 by Russian author K. E. Tsiolkovsky in his "Speculations about Earth and Sky and on Vesta".
The concept was first described in 1895 by Russian author K. E. Tsiolkovsky in his "Speculations about Earth and Sky and on Vesta".