Calvo Caravaca, Alfonso Luis, Maria Del Pilar Canedo Arrillaga, y Natividad Goñi Urriza. 2004. «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 2 (4). https://revistas.javeriana.edu.co/index.php/internationallaw/article/view/14104.