A.M. Lerer - D.Sc. (Phys.-Math.), Professor, Southern Federal University I.V. Donets - Ph.D. (Phys.-Math.), Associate Professor, Southern Federal University G.A. Kalinchenko - Ph.D. (Phys.-Math.). E-mail: kalinchenko@yahoo.com P.V. Makhno - Ph.D. (Phys.-Math.), Associate Professor, Southern Federal University

A.M. Lerer - D.Sc. (Phys.-Math.), Professor, Southern Federal University
I.V. Donets - Ph.D. (Phys.-Math.), Associate Professor, Southern Federal University
G.A. Kalinchenko - Ph.D. (Phys.-Math.). E-mail: kalinchenko@yahoo.com P.V. Makhno - Ph.D. (Phys.-Math.), Associate Professor, Southern Federal University