PODOGRODZKA, Małgorzata. The ageing of the population and the fertility in Poland. Acta Universitatis Lodziensis. Folia Oeconomica, [S. l.], n. 291, p. 233–248, 2013. DOI: 10.18778/0208-6018.291.19. Disponível em: https://czasopisma.uni.lodz.pl/foe/article/view/27576. Acesso em: 6 dec. 2025.