WALCZAK, Damian. Pension Privileges the Economic and Social Aspects. DEMO, Poland, v. 5, n. 10, p. 49–62, 2017. DOI: 10.18559/SOEP.2017.10.4. Disponível em: https://ojs34.fimagis.pl/index.php/demo/article/view/1049. Acesso em: 18 apr. 2026.