SANROMÁN, G.; ROSSI, I.; GRUSHKA, C.; FAJNZYLBER, E.; APELLA, I.; FORTEZA, Álvaro. Contributions to social security in Argentina, Chile and Uruguay: densities, transitions and duration. Económica, [S. l.], v. 57, p. p. 127–164, 2011. Disponível em: https://revistas.unlp.edu.ar/Economica/article/view/5364. Acesso em: 29 mar. 2024.