Damira, A., J. G. Narimanovna, Y. Lyazzat, B. Rustamov, A. Faizulayev, and F. V. Bekun. “Competition Determinants of Eurasian Economic Union Oil and Gas Companies”. International Journal of Energy Economics and Policy, vol. 12, no. 2, Mar. 2022, pp. 336-41, doi:10.32479/ijeep.12906.