00652naa#a2200217#i#450# EN\\bibl\6096 /en/manage/index 20250117205540.5 1992-5980 20150630b2015####ek#y0engy0150####ca RUS RU The estimation of fuzzy boundary of multioperational machine tool life Journal article rostov on don Don state technical University 2015 8 с. Journal article local SHuchyev Konstantin Terekhov Dmitriy Izyumov Andrey Tugengold Andrey fht.editorum.ru /en/manage/index