Grabowski, Wojciech. “Contagion in the Central and Eastern Europe During the Coronavirus Pandemic. Application of the Quantile Regression”. Studia Prawno-Ekonomiczne 121 (December 19, 2021): 183–200. Accessed December 3, 2024. https://journals.ltn.lodz.pl/Studia-Prawno-Ekonomiczne/article/view/1549.