Pietrzak, Michał, and Justyna Wilk. “METROPOLITAN AREAS OF SOUTHERN POLAND AND POPULATION MIGRATION MOVEMENT”. Ekonomia i Prawo. Economics and Law 12, no. 3 (September 30, 2013): 489–506. Accessed May 16, 2026. https://apcz.umk.pl/EiP/article/view/EiP.2013.036.