GÜMÜŞ, Y. K. How Secure is the EU Energy Policy after the Ukraine Crisis?. International Journal of Energy Economics and Policy, [S. l.], v. 5, n. 4, p. 1016–1021, 2015. Disponível em: https://econjournals.com.tr/index.php/ijeep/article/view/1165. Acesso em: 5 jul. 2024.