TY JOUR TI Mathematical modeling of epidemiological processes using delay differential equations KW mathematical modeling KW epidemiology process KW delay ordinary differential equation KW Runge – Kutta methods. JO Actual directions of scientific researches of the XXI century: theory and practice AU Oleynik, E.. AU Goy, T.. PY 2015 IS 3 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov