00503naa#a2200169#i#450# EN\\bibl\28240 20260121172747.3 1609-3178 20190403b2019####ek#y0engy0150####ca RU Radiographic Inspection: Legal Requirements on the Choice of a Radiographic Film Journal article Saint-Petersburg LLC SVEN 2019 2 с. Journal article local Gnedin Mikhail V. Shablov Stanislav V. zh-szf.ru