TY JOUR TI THE PROGRAM OF MODELLING OF PROCESSES OF DISTRIBUTION OF RADIO WAVES IN THE CONDITIONS OF THE CITY WITH USE OF ASYMPTOTIC METHODS KW Propagation of radio waves KW ray optics KW modeling. JO Actual directions of scientific researches of the XXI century: theory and practice AU Asotov, D.. PY 2014 IS 2 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov