1. Mondt JF, Underwood ML, Nesmith BJ. in Proceedings of the 32nd Intersociety Energy Conversion Engineering Conference, Paper No. 97244. Vol. 1, American Chemical Society, 1997, p. 460
2. Schock A, Noravian H, Or C, Kumar V. in Proceedings of the 2nd Space Technology and Applications International Forum (STAIF-97), CONF-970115, Vol. 3, ed. M. S. El-Genk. American Institute of Physics, New York, NY, AIP Conference Proceedings No. 387, 1997, p. 1411
3. A thermoelectric device based on beta-alumina solid electrolyte
4. Sievers RK, Markley RA, Schmidt JE, Weber N, Rasmussen JR, Olsen SL, Hunt TK. Space Nuclear Power Systems 1988. Vol. 9. ed. M. S. El-Genk, M. D. Hoover. Orbit Book Company, Malabar, FL, 1989, p. 531
5. Sievers RK, Bankston CP. in Proceedings of the 23rd Intersociety Energy Conversion Engineering Conference, Paper No. 889082, Vol. 3, ed. D. Y. Goswami. The American Society of Mechanical Engineers, 1988, p. 159