GUERRERO MAYORGA, O. THE JUS COGENS THE GROUND NORM OF INTERNATIONAL LAW. Journal of Law of the Faculty of Legal and Social Sciences, [S. l.], v. 2, n. 1, p. 1–15, 2019. Disponível em: https://revistas.unanleon.edu.ni/index.php/revistadederecho/article/view/145. Acesso em: 26 apr. 2024.