NIŻNIK, Joanna. Retirement Benefits in the Chile an Social Security System. Studia Oeconomica Posnaniensia, Poznan, Polska, v. 1, n. 11, p. s. 52–63, 2013. DOI: 10.18559/5xp03s43. Disponível em: https://journals.ue.poznan.pl/soep/article/view/3347. Acesso em: 3 sep. 2026.