1. J. Berkowitz and J. R. Marquart, J. Chem. Phys., 39, 275–283 (1963).
2. B. P. Nikol′skii (Ed.), A Chemist′s Handbook [in Russian], Vol. 1, Khimiya, Moscow–Leningrad (1982).
3. A. N. Zavilopulo, P. P. Markush, O. B. Shpenik, and M. I. Mikita, Zh. Tekh. Fiz., 84, No. 7, 8–14 (2014).
4. N. Greenwood and A. Earnthaw, Chemistry of the Elements, 2nd edn., Butterworth–Heinemann, Oxford (1997), pp. 645–662.
5. L. M. Feaga, M. A. McGarth, and P. D. Feldman, Astrophysics, 570, 439–446 (2002).