M. Beltyukova, S.; P. Pazdnikova, N.; V. Karpovich, Y.; A. Kuznetsov, P.; ., . Oil Sector of Russia: Current Situation and Trends. IJET 2018, 7 (4.38), 63-66. https://doi.org/10.14419/ijet.v7i4.38.24322.