%0 Journal Article %T Beam tracing analytical algorithms optimization in simulation of urban radio waves propagation %A Asotov, D.. %A Sereda, V.. %K path, raytracing, non-linear system tquations. %J Actual directions of scientific researches of the XXI century: theory and practice %D 2014 %N 2 %P 3 %I FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov