%0 Journal Article %T REGULARITIES OF CHANGES IN THE STRUCTURE OF FIR FORESTS DAMAGED AS A RESULT OF THE INVASION OF POLYGRAPHUS PROXIMUS %A Debkov, N.M. %K structure of stands, natural renewal, ground cover, xylophagous invasion, Abies sibirica Ledeb., Polygraphus proximus Blandf %J Forestry Engineering Journal %D 2018 %N 8 %P 9 %I FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov