1. Bratsch, S.G., J. Phys. Chem. Ref. Data., 1989, vol. 18, no. 1, p. 1.
2. Jonson, M.D. and Sharma, K.D., Inorg. Chim. Acta, 1999, vol. 293, p. 229.
3. Spravochnik khimika (Handbook of Chemist), Nikol’-skii, B.P., Ed., Moscow: Khimiya, 1964, vol. 3, p. 373.
4. Shilov, V.P. and Yusov, A.B., Radiokhim., 2006, vol. 48,no. 1, p. 22.
5. Peretrukhin, V.F., Krot, N.N., and Gel’man A.D., Radiokhim., 1972, vol. 14, no. 1, p. 72.