1. Kagan D.N., Ternary Systems. Handbook of Thermodynamic and Transport Properties of Alkali Metals, Ed. by R.W. Ohse, Oxford: Blackwell Scientific Publications, 1985, Ch. 9.5, p. 963.
2. Kazachkovskii, O.D., Starkov, O.V., Kochetkova, E.A., Bogdanovich, N.G., Sulim, E.M., Levchenko, V.E., Lyubchenko, N.F., and Konovalova, V.F., At. Energ., 1992, vol. 73, p. 500.
3. Belyaeva, A.I., Silaev, V.I., and Stetsenko, Yu.E., Protochnye kriostaty dlya laboratornykh issledovanii (Running Thermostatic Coolers for Laboratory Researches), Kiev: Naukova Dumka, 1987.
4. Kozhevnikov, I.G. and Novitskii, A.I., Teplofizicheskie svoistva materialov pri nizkikh temperaturakh: Spravochnik (Thermophysical Properties of Materials at Low Temperatures. A Handbook), Moscow: Mashinostroenie, 1982.
5. Alchagirov, B.B. and Khokonov, Kh.B., in Sb. “Fizika i khimiya perspektivnykh materialov” (Coll. Papers “Physics and Chemistry of Promising Materials”), Nal’chik: KBGU, 1998.