Sánchez Barrilao, Juan Francisco. “The Constitutionalization of the European Regional Integration. More Europe! Facing Back a Constitution for Europe, under the Current Crisis”. Estudios de Deusto 60, no. 2 (November 27, 2014): 71-109. Accessed September 19, 2025. https://revista-estudios.revistas.deusto.es/article/view/319.