TY JOUR TI USE OF THE MULTISIGMOIDALNA METHOD OF APPROXIMATION WHEN FORECASTING ECONOMIC INDICATORS KW multisigmoidalnaya approximation KW sigmoid KW economic indicators. JO Actual directions of scientific researches of the XXI century: theory and practice AU Gyyazov, A.. AU Kirillova, S.. AU Bezrukov, B.. AU Bezrukova, T.L. AU Chugunova, E.. PY 2014 IS 2 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov