00602naa#a2200193#i#450# EN\\bibl\8286 20260325173944.3 2308-8877 20151210b2015####ek#y0engy0150####ca RUS RU Ultrasonic hardness tester 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 Kazaryan Araik Bodaeva Marina Kovalev Ilarion anni.editorum.ru