Chernysheva, A. M., Gusakov, N. P., Trofimova, A. A., & Bulatenko, M. A. (2019). Diversification of Transit Risks of Oil Supplies Bypassing Ukraine as the Basis of Energy Security in Europe. International Journal of Energy Economics and Policy, 9(6), 461–468. Retrieved from https://econjournals.com/index.php/ijeep/article/view/8428