00568naa#a2200169#i#450# EN\\bibl\19405 20250128121659.2 1609-3178 20171219b2017####ek#y0engy0150####ca RU Training and Certification of the Personnel at CJSC Trust North-West Energomontaz Journal article Saint-Petersburg LLC SVEN 2017 2 с. Journal article local Инженерное дело. Техника в целом. Транспорт. 62 Pershitc Boris Ya. naukaru.ru