CZECH, Anna. Economic dimension of Polish energy security. Oeconomia Copernicana, [S. l.], v. 8, n. 3, p. 383?399, 2017. DOI: 10.24136/oc.v8i3.24. Disponível em: https://oeconomia.pl/index.php/oc/article/view/247. Acesso em: 7 feb. 2026.