00508naa#a2200181#i#450# EN\\bibl\10407 20250105021323.7 2223-4608 20160131b2016####ek#y0engy0150####ca RUS RU Profile and contour grinding of compressor blade butts Journal article Bryansk Bryansk State Technical University 2016 4 с. Journal article local Poletaev V. Tsvetkov E. bstu.editorum.ru