KUREK, S.; LANGE, M. Urbanisation and changes in fertility pattern in Poland and in the selected countries of Western and Southern Europe. Bulletin of Geography. Socio-economic Series, [S. l.], n. 17, p. 77–85, 2012. DOI: 10.1515/v10089-012-0008-2. Disponível em: https://apcz.umk.pl/BGSS/article/view/v10089-012-0008-2. Acesso em: 17 paź. 2021.