E.I. Semernya – Post-graduate Student,
Moscow Institute of Physics and Technology (State University)
E-mail: poshisholina @gmail.com
S.P. Skobelev – Dr.Sc.(Phys.-Math.), Leading Research Scientist,
PJSC «Radiofizika» (Moscow);
Associate Professor, Moscow Institute of Physics and Technology (State University) E-mail: s.p.skobelev@mail.ru