00654naa#a2200217#i#450# EN\\bibl\12101 20240804013546.7 1609-3178 20160624b2016####ek#y0engy0150####ca RUS RU Testing of Radiographic Films to Determine Their Applicability for NDT of Aviation Technology Products Journal article Saint-Petersburg LLC SVEN 2016 4 с. Journal article local Krupnina Olga Demidov Aleksandr Stepanov Aleksandr Kosarina Ekaterina I. Turbin Evgeniy naukaru.ru