Competition in space: Opportunities, consequences and risks to international security : 44th Academic Space Conference dedicated to the memory of academician S.P. Korolev and other outstanding russian scientists - pioneers of space exploration. Bauman Moscow State Technical University; Moscow; Russian Federation, 28-31.01.2020 // AIP Conference Proceedings. 2021. Vol. 2318, Issue 1: XLIV Academic Space Conference. Artical 070020. DOI 10.1063/5.0035827.