TY JOUR TI NONLINEAR SOCIAL DYNAMICS OF PUBLIC DEVELOPMENT KW bifurcation KW nonlinearity KW instability KW randomness KW transforming society JO Scientific and analytical journal «Vestnik Saint-Petersburg university of State fire service of EMERCOM of Russia» AU Lugovoy, A.A. AU Kurakina, E.V. PY 2017 IS PB Saint-Petersburg University of State Fire Service of Emercom of Russia