1. Yu. G. Demyanko, G. V. Konyukhov, A. S. Koroteev, et al., Nuclear Rocket Engines (Norma-Inform, Moscow, 2001) [in Russian].
2. A. B. Zemkyanov, L. Kossov, and V. A. Traube, System of Naval Space Reconnaissance and Target Designation (History of Creation) (Galeya-Print, St. Petersburg, 2002) [in Russian].
3. N. E. Kukharkin, N. N. Ponomarev-Stepnoi, and V. A. Usov, Space Nuclear Power (Nuclear Reactors with Thermoelectric and Thermionic Conversion—Romashka and Yenisei) (IzdAT, Moscow, 2012) [in Russian].
4. A. A. Gafarov, “Problems of collisions of space objects with nuclear power sources on board with space debris,” in Space Debris, Book 2: Space Debris Prevention (Fizmatlit, Moscow, 2014) [in Russian].
5. Principles Relevant to the Use of Nuclear Power Sources in Outer Space. Resolution 47/68 adopted by the UN General Assembly on December 14, 1992.
https://undocs.org/en/A/RES/47/68.