Burzyńska D, Jabłońska M, Bartosik G. An analysis of investment opportunities of Polish districts in the years 2010 and 2017. SPE [Internet]. 2019 Dec. 30 [cited 2025 Apr. 8];113:171–188. Available from: https://ojsltn.uni.lodz.pl/Studia-Prawno-Ekonomiczne/article/view/735