TAKÓ, Dalma. Clauses Providing Possibility of Choice in International Treaties. Pécs journal of international and European law, [S. l.], n. I-II, 2023. DOI: 10.15170/PJIEL.2023.1.2. Disponível em: https://journals.lib.pte.hu/index.php/pjiel/article/view/6815. Acesso em: 5 dec. 2025.