ORAZIO P., Attanasio; VIOLANTE, Gianluca. Global Demographic Trends and Social Security Reform. Desarrollo y Sociedad, [S. l.], v. 1, n. 44, p. 3–27, 1999. DOI: 10.13043/dys.44.2. Disponível em: https://revistas.uniandes.edu.co/index.php/dys/article/view/6472. Acesso em: 17 feb. 2026.