KUREK, Sławomir. The spatial distribution of population ageing in Poland in the years 1988-2001. Bulletin of Geography. Socio-economic Series, [S. l.], n. 2, p. 65–75, 2003. DOI: 10.1515/2525. Disponível em: https://apcz.umk.pl/BGSS/article/view/2525. Acesso em: 21 feb. 2025.