TY JOUR TI PECULIARITIES OF THE EXTERNALPATHOLOGY MANIFESTATION ON SOFT-WOODED BROADLEAVED SPECIES KW tree pathology KW signs of tree weakening KW external manifestation of tree pathology JO Forestry Engineering Journal AU Komarova, O.V. PY 2021 IS 10 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov