00514naa#a2200169#i#450# EN\\bibl\9369 20240909123837.1 1609-3178 20151216b2015####ek#y0engy0150####ca RUS RU Experimental Research of Flaw Detection Technique at Manual Ultrasonic Testing of Railway Rolling Stock Elements Journal article Saint-Petersburg LLC SVEN 2015 3 с. Journal article local Kireev Andrey naukaru.ru