00531naa#a2200181#i#450# EN\\bibl\579 20241015155540.2 1992-5980 20130930b2013####ek#y0engy0150####ca RUS RU Noise protection equipment system for centrifuging helicopter spar tubes Journal article rostov on don Don state technical University 2013 8 с. Journal article local Proskoryakova Yuliya Motrenko Petr naukaru.ru