Szajnowska-Wysocka, Alicja. “Demographic Changes in an Industrial Centre (based on Sosnowiec As the example)”. Bulletin of Geography. Socio-economic Series, no. 4 (December 1, 2005): 191–200. Accessed July 8, 2024. https://apcz.umk.pl/BGSS/article/view/2498.