Yu.E. Korchagin – Dr.Sc.(Phys.-Math.), Associate Professor, Head of Department of Radiophysics, Voronezh State University
E-mail: korchagin@phys.vsu.ru
K.D. Titov – Ph.D.(Phys.-Math.), Assistant, Department of Radiophysics, Voronezh State University E-mail: titovkd@gmail.com