ZAJĄCZKOWSKA, M. The Energy Union and European Union energy security. Ekonomia i Prawo. Economics and Law, [S. l.], v. 17, n. 3, p. 319–328, 2018. DOI: 10.12775/EiP.2018.023. Disponível em: https://apcz.umk.pl/EiP/article/view/EiP.2018.023. Acesso em: 3 jul. 2024.