TY JOUR TI Perfection ofsilviculturalmeasuresthe contentand use ofspruce forests, improving their sustainability andreducingthe negative effects ofthe pathology KW spruce spruce forests KW silvicultural measures KW improved spruce KW maintenance and use of forests KW the organization the implementation ofactivities JO Forestry Engineering Journal AU Malakhova, E.. AU Zheldak, V.I. AU Proka, I.Y. PY 2015 IS 5 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov