Kotlińska, Janina, Anna Krawczyk-Sawicka, and Anna Mizak. “Financial Condition of Regions in Poland: 2010 Vs. 2019”. Acta Scientiarum Polonorum Administratio Locorum 24, no. 1 (March 27, 2025): 83–102. Accessed April 7, 2025. https://czasopisma.uwm.edu.pl/index.php/aspal/article/view/10066.