TY JOUR TI On applications of the method of guiding functions in some problems of nonlinear analysis and control theory KW guiding function KW periodic solution KW bounded solution KW boundary value problem KW bifurcation JO Actual directions of scientific researches of the XXI century: theory and practice 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