JELONEK, A. Changes in the number of population in Poland during a 30 year period. Bulletin of Geography. Socio-economic Series, [S. l.], n. 2, p. 27–38, 2003. DOI: 10.1515/2521. Disponível em: https://apcz.umk.pl/BGSS/article/view/2521. Acesso em: 8 jul. 2024.