LANGE, Milena. Population aging in the context of changing changes. Acta Universitatis Lodziensis. Folia Oeconomica, [S. l.], n. 291, p. 221–231, 2013. DOI: 10.18778/0208-6018.291.18. Disponível em: https://czasopisma.uni.lodz.pl/foe/article/view/27575. Acesso em: 5 dec. 2025.