MURKOWSKI , Radosław. Advancement of the Aging Process of the Population in Poland between 1990 and 2050. Studia Oeconomica Posnaniensia, Poznan, Polska, v. 6, n. 9, p. 59–77, 2018. DOI: 10.18559/SOEP.2018.9.4. Disponível em: https://journals.ue.poznan.pl/soep/article/view/3831. Acesso em: 3 sep. 2026.