A.M. Mandel - Ph. D. (Phys.-Math.), Professor, Department of Physics, MSTU «STANKIN» (Moscow). E-mail: arkadimandel@mail.ru
V.B. Oshurko - Dr. Sc. (Phys.-Math.), Head of Department of Physics, MSTU «STANKIN» (Moscow). E-mail: vbo08@yandex.ru
G.I. Solomakho - Ph. D. (Phys.-Math.), Professor, Department of Physics, MSTU «STANKIN» (Moscow). E-mail: solgeo@yandex.ru