Takáč, O., K. Czakóová, L. Végh, G. Kocsis, L. Marák, I. Szencziová, Z. Kocsis, and M. Nagy. “The COVID-19 Pandemic in Retrospect”. International Journal of Advanced Natural Sciences and Engineering Researches, vol. 8, no. 11, Dec. 2024, pp. 529-36, https://as-proceeding.com/index.php/ijanser/article/view/2322.