Váczi, Péter, et al. “EFFECT OF COVID-19 CORONAVIRUS ON MAJOR NORTH EFFECT OF COVID-19 CORONAVIRUS ON MAJOR NORTH AMER-ICAN SPORTS LEAGUESAMER-ICAN SPORTS LEAGUES”. Acta Carolus Robertus, vol. 11, no. 1, July 2021, pp. 157-66, https://doi.org/10.33032/acr.2587.