TY JOUR TI On the method of nonsmoth integral guiding function in the existence problem of periodic solutions of functional differential inclusions with nonconvex right-hand side KW functional differential inclusion KW periodic solution KW guiding function KW topological degree JO Actual directions of scientific researches of the XXI century: theory and practice AU Kornev, S.. AU Obukhovskiy, V.. PY 2014 IS 2 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov