00582naa#a2200181#i#450# EN\INFRA-M\bibl\28223 20240501121916.3 2500-0527 20190401b2019####ek#y0engy0150####ca RUS RU Security and diversification of external sources of oil supplies to the EU Journal article Moscow INFRA-M Academic Publishing LLC. 2019 3 с. Journal article local Экономика. Экономические науки. 33 RUS Razumnova L. L. naukaru.ru