Wielki, Janusz, Inessa Sytnik, and Artem Stopochkin. “Structural Disparities in the Polish Economy: Regional Development”. Regional Barometer. Analyses & Prognoses 16, no. 4 (April 12, 2019): 69–79. Accessed November 8, 2024. https://czaz.akademiazamojska.edu.pl/index.php/br/article/view/47.