D.S. Gubsky - Ph.D. (Phys.-Math.), Associate Professor, Southern Federal University. E-mail: ds@sfedu.ru V.V. Zemlyakov - Ph.D. (Phys.-Math.), Associate Professor, Southern Federal University. E-mail: vvzemlyakov@sfedu.ru Yu.M. Noykin - Ph.D. (Phys.-Math.), Associate Professor, Southern Federal University. E-mail: aed@phys.sfedu.ru G.P. Siniavsky - D.Sc. (Phys.-Math.), Professor, Southern Federal University. E-mail: sinyavsky@sfedu.ru