O.B. Goncharuk, E.G. Skorobogatov, V.V. Yudin

I.N. Aliev - Dr. Sc. (Phys.-Math.), Professor. Bauman Moscow State Universit. E-mail: alievprof@yandex.ru P.P. Poluektov - Dr. Sci. (Phys.-Math.), Bochvara Russian Scientific Research Institute of Inorganic Materials. E-mail:ppp@bochvar.ru