00579naa#a2200181#i#450# EN\\bibl\5128 20241129015457.5 2308-8877 20150316b2015####ek#y0engy0150####ca RUS RU On the modernization of drills for combined stumps 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 Fedorov O. Rybalkin D. naukaru.ru