00617naa#a2200181#i#450# EN\\bibl\8290 20251228221739.7 2308-8877 20151210b2015####ek#y0engy0150####ca RUS RU Some constructive solutions to improve the efficiency of the hammer zernoterok Journal article Voronezh FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov 2015 3 с. Journal article local Boyko Anatoliy Morozovskaya Zoya zh-szf.ru