AFFLATET, N. The Impact of Population Ageing on Public Debt: A Panel Data Analysis for 18 European Countries. International Journal of Economics and Financial Issues, [S. l.], v. 8, n. 4, p. 68–77, 2018. Disponível em: https://econjournals.com/index.php/ijefi/article/view/6512. Acesso em: 20 may. 2022.