E.P. Sheshin - Dr.Sc. (Phys.-Math.), Professor, Moscow Institute of Physics and Technology. E-mail: sheshin@mail.mipt.ru
A.J. Kolodjazhnyj - Student, Moscow Institute of Physics and Technology. E-mail: kolodyazhnyj@gmail.com
G.M. Bolejko - Ph.D., Associate Professor, Moscow Institute of Physics and Technology. E-mail: bolhel@mail.ru