Dumont, Gerard - François, and Jean - Marc Zaninetti. “Demographic Prospects for 2030 in Poland: The Stakes of the EU Enlargement”. Bulletin of Geography. Socio-economic Series, no. 4 (December 1, 2005): 37–56. Accessed July 8, 2024. https://apcz.umk.pl/BGSS/article/view/2486.