Calvo Caravaca, A. L., M. D. P. Canedo Arrillaga, y N. Goñi Urriza. «THE MODERNIZATION OF THE SYSTEM OF IMPLEMENTATION OF ARTICLES 81 AND 82 OF THE TREATY OF THE EUROPEAN COMMUNITY FROM THE SPANISH PERSPECTIVE». International Law: Revista Colombiana De Derecho Internacional, vol. 2, n.º 4, octubre de 2004, https://revistas.javeriana.edu.co/index.php/internationallaw/article/view/14104.