00597naa#a2200181#i#450# EN\\bibl\5704 20260313071716.5 2308-8877 20150318b2015####ek#y0engy0150####ca RUS RU Maintenance of the environmental friendliness forest machines Journal article Voronezh FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov 2015 4 с. Journal article local Voynash A. Voinash S. A. anni.editorum.ru