00545naa#a2200169#i#450# EN\\bibl\7544 20251222025331.1 2308-8877 20151012b2015####ek#y0engy0150####ca RUS RU Inside unbalance motors are vibration sources 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 Shcheglov V. zh-szf.ru