GRANATO, Leonardo. PRESENTATION: THE BRAZILIAN CHALLENGE OF REACTIVATING UNASUR AND STRENGTHENING MERCOSUR. AUSTRAL: Brazilian Journal of Strategy & International Relations, [S. l.], v. 12, n. 23, 2023. DOI: 10.22456/2238-6912.134786. Disponível em: https://seer.ufrgs.br/index.php/austral/article/view/134786. Acesso em: 12 aug. 2026.