00535naa#a2200193#i#450# EN\\bibl\14600 20241126165804.2 1609-3178 20151215b2015####ek#y0engy0150####ca RUS RU Field Topography of Defects in Magnetic Non-Destructive Testing Journal article Saint-Petersburg LLC SVEN 2015 3 с. Journal article local Pokrovskiy Aleksey Novikov Ilya Khvostov Andrey zh-szf.ru