HUK, J. Effectiveness of migration, for Wrocław, from 1989 to 2001. Bulletin of Geography. Socio-economic Series, [S. l.], n. 2, p. 17–25, 2003. DOI: 10.1515/2520. Disponível em: https://apcz.umk.pl/BGSS/article/view/2520. Acesso em: 17 aug. 2024.