National security and international trade: approaching the meaning and extent of article XXI GATT in times of technological changes and geostrategic competence. CUADERNOS DE DERECHO TRANSNACIONAL, [S. l.], v. 12, n. 1, p. 170–202, 2020. DOI: 10.20318/cdt.2020.5184. Disponível em: https://e-revistas.uc3m.es/index.php/CDT/article/view/5184. Acesso em: 5 dec. 2025.