M. V. Davidovich - Dr.Sc. (Phys.-Math.), Professor, Department of Radiotechnology and Electrodynamics, Saratov State University. E-mail: DavidovichMV@info.sgu.ru
N. A. Bushuev - Ph.D. (Phys.-Math.), General Director of SPE "Almaz". E-mail: nabush2009@yandex.ru
A.V. Popov - Dr.Sc. (Phys.-Math.), Head of Department, Pushkov Institute of Terrestrial Magnetism, Ionosphere and Radio Wave Propagation (IZMIRAN) (Moscow, Troitsk). E-mail: popov@izmiran.ru
I.V. Prokopovich - Post-graduate Student Junior Research Scientist, Pushkov Institute of Terrestrial Magnetism, Ionosphere and Radio Wave Propagation (IZMIRAN) (Moscow, Troitsk). E-mail: prokop21@mail.ru