RAGULINA, Y. V.; BOGOVIZ, A. V.; LOBOVA, S. V.; ALEKSEEV, A. N. An Aggregated Energy Security Index of Russia, 1990-2015. International Journal of Energy Economics and Policy, [S. l.], v. 9, n. 1, p. 212–217, 2018. Disponível em: https://www.econjournals.com/index.php/ijeep/article/view/7209. Acesso em: 29 apr. 2024.