00624naa#a2200169#i#450# EN\\bibl\123646 20260531022248.7 2782-4586 20260530b2026####ek#y0engy0150####ca RU Differentiated implementation mechanisms oil and gas potential of coastal regions the Russian sector of the Caspian sea Journal article Moscow ITBO University 2026 4 с. Journal article local Экономические науки в целом. Политическая экономия. 330 Gitman Igor' Sergeevich jomeam.ru