1. N.A. Rynin, Interplanetary Flight and Communication, Vol. II, No. 4, Leningrad, 1929 (English translation, NASA TTF-640-648).
2. L.K. Korneev, editor, Problems of Flight by Jet Propulsion, Moscow, 1961 (English translation, NASA, TTF-147, 1964).
3. V.N. Sokolsky, Some new data on early work of the Soviet scientist-pioneers in rocket engineering, In First Steps Toward Space, Univelt, San Diego, 1985.
4. A. Tsander, editor, From a Scientific Heritage, by F.S. Tsander, Moscow, 1967 (English translation, NASA TTF-541, 1969).
5. A. Tsander, Talk before Moscow science history, summer 1997, personal communication from Y. Zhagars.