SOJKA, E. Demographic changes in the area of Śląskie voivodeship - retrospective analysis and projection until 2050. Bulletin of Geography. Socio-economic Series, [S. l.], n. 31, p. 113–128, 2016. DOI: 10.1515/bog-2016-0008. Disponível em: https://apcz.umk.pl/BGSS/article/view/bog-2016-0008. Acesso em: 1 sep. 2024.