1. V. F. Gladkii, Riddle of the project of the rocket R-3, Aviats. Kosmonavt., No. 11, 13–16 (2002).
2. T. A. Heppenheimer, Facing the Heat Barrier: A History of Hypersonics: The NASA History Series, Washington, DC (2007) (NASA SP-2007-4232).
3. S. Reznik, Yuri Gagarin flight and the composite materials and technologies development, in: Proc. 1st Int. Workshop on Advanced Composite Materials and Technologies for Aerospace Applications, 9–11 May 2011, Wrexham, UK (2011), pp. 11–21.
4. I. S. Prudnikov, Solution of “problem No. 1,” Aviats. Kosmonavt., Nos. 1–2, 19–21 (1994).
5. Yu. M. Baturin (Ed.), The World Piloted Cosmonautics. History. Equipment. People [in Russian], Izd. “RTSoft,” Moscow (2005).