1. N. M. Sinitsyn, A. M. Kunaev, E. I. Ponomareva, et al., The Metallurgy of Osmium (Nauka, Alma-Ata, 1981) [in Russian].
2. S. I. Ginzburg, N. A. Ezerskaya, I. V. Prokof’eva, et al., Analytical Chemistry of Platinum Metals (Nauka, Moscow, 1972; Wiley, New York, 1975).
3. N. V. Vorob’ev-Desyatovskiĭ, Yu. N. Kukushkin, and V. V. Sibirskaya, Koord. Khim. 11, 1299 (1985).
4. O. V. Rudnitskaya, E. K. Kultyshkina, N. U. Venskovskiĭ, and A. I. Stash, Kristallografiya 52(2), 259 (2007) [Crystallogr. Rep. 52 (2), 239 (2007)].
5. E. K. Kultyshkina, O. V. Rudnitskaya, A. I. Stash, and N. U. Venskovskiĭ, in Abstracts of Papers of the XVIII International Chernyaev Conference on Chemistry, Analysis, and Technology of the Platinum Metals, Moscow, Russia, October 9–13, 2006 (Moscow, 2006), Part 1, p. 180.