IBRAYEVA, A.; SANNIKOV, D. V.; KADYROV, M. A.; ZAPEVALOV, V. N.; HASANOV, E. L.; ZUEV, V. N. Importance of the Caspian Countries for the European Union Energy Security. International Journal of Energy Economics and Policy, [S. l.], v. 8, n. 3, p. 150–159, 2018. Disponível em: https://www.econjournals.com/index.php/ijeep/article/view/6263. Acesso em: 20 apr. 2024.