TY JOUR TI Inversion as an example of a nonlinear transformation of the plane KW a nonlinear transformation KW inversion KW circle of inversion. JO Actual directions of scientific researches of the XXI century: theory and practice AU Suponeva, A.. AU Galaktionov, M.. PY 2015 IS 3 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov