Béresné, Bernadett, and Eszter Maklári. “The Economic and Social Effects of the COVID-19 Epidemic in the European Union over the Past Year, Especially in Hungary”. International Journal of Engineering and Management Sciences 6, no. 4 (December 21, 2021): 67–79. Accessed November 22, 2024. https://ojs.lib.unideb.hu/IJEMS/article/view/9229.