TY JOUR TI A phase space visualization of some classes of three-dimensional dynamical systems KW nonlinear dynamical systems KW phase space KW Poincare section KW numerical methods KW three-dimensional visualization. JO Actual directions of scientific researches of the XXI century: theory and practice AU Grafov, V.. AU Sopilnyak, A.. PY 2014 IS 2 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov