00676naa#a2200205#i#450# EN\INFRA-M\bibl\28877 /en/manage/index 20250322095822.6 2500-0527 20190531b2019####ek#y0engy0150####ca RUS RU Problems in the sphere of the Russian gas export during the sanctions period Journal article Moscow INFRA-M Academic Publishing LLC. 2019 4 с. Journal article local Экономика. Экономические науки. 33 RUS Gladkov Igor' Sergeevich Egorov K. I. test.editorum.ru /en/manage/index