%0 Journal Article %T THE NATURAL POTENTIAL OF REGENERATION IN FIR FORESTS, DAMAGED DURING THE INVASION OF POLYGRAPHUS PROXIMUS %A Debkov, N.M. %K natural regeneration, infestations of xylophagous, Abies sibirica Ledeb., degradation of forests, Polygraphus proximus Blandf. %J Forestry Engineering Journal %D 2017 %N 7 %P 10 %I FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov