Booz-Allen and Hamilton, Inc. 1993. Topaz International Program—Lessons Learned in Technology Cooperation with Russia. Contract SD1084–93-C-0010.
DOE (Department of Energy). 1992. Report of the United States Space Nuclear Power and Propulsion Team: An Examination of the Space Nuclear Power and Propulsion Activities of the Commonwealth of Independent States. DOE, Washington, D.C., October 6.
FBIS (Foreign Broadcast International Service). 2000. FBIS-CHI-2000– 0530. May 30.
Ponomarev-Stepnoi, N.N., Pavshoock, Vladimir A., and Usov, Veniamin A. 1992. “NPS Options for Lunar Bases Power Supply,” American Institute of Physics Conference Proceedings 246(1):440–445.
Shengquan, Cao. 1984. “Thermionic Converter for Space Reactor Description,” Chinese Journal of Nuclear Science and Engineering 4(3):227– 232.