1. G. V. Korpusov, N. A. Danilov, Yu. S. Krylov, et al., in Fundamental Problems of Russian Metallurgy on the Edge of XXI Century (RAEN, Moscow, 1999), Vol. 3, pp. 275–291 [in Russian].
2. V. P. Karmannikov, M. A. Klemenko, and A. I. Mikhailichenko, Tsvetn. Met. (Moscow, Russ. Fed.), No. 8, 60 (1991).
3. G. V. Zimina, I. I. Nikolaeva, M. V. Tauk, et al., Tsvetn. Met. (Moscow, Russ. Fed.), No. 4, 23 (2015).
4. D. E. Chirkst, D. S. Lutski, V. A. Lutskaia, et al., Freiberger Forschungshefte, 388 (2010).
5. N. S. Egorova, V. V. Belova, A. A. Voshkin et al., Russ. J. Inorg. Chem. 50, 1781 (2005).