TY JOUR TI Applied the theory of artificial intellect for the solving stability ground mass KW stability KW ground mass KW the information system KW fuzzy logic JO Forestry Engineering Journal AU Korobkin, E.. AU Astakhova, I.. AU Khitskova, Y.. PY 2015 IS 5 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov