NOWOTNIK, D. Permanent Foreign Immigrations into Poland. Studies of the Industrial Geography Commission of the Polish Geographical Society, [S. l.], v. 22, p. 161–181, 2013. DOI: 10.24917/20801653.22.12. Disponível em: https://prace-kgp.uken.krakow.pl/article/view/1437. Acesso em: 7 may. 2024.