Vasiliev, I. Yu., and Ya. V. Tkachenko. 2019. “Comparative Effectiveness of Throttled and Relay Rocket Engines for Low-Gravity Near-Earth Flights”. Bulletin of Taras Shevchenko National University of Kyiv. Physics and Mathematics, no. 2 (April): 46-51. https://doi.org/10.17721/1812-5409.2019/2.4.