LISICKI, Bartłomiej. Differentiation of Beta Coefficients during COVID-19 Pandemic – the Example of Stocks of the Largest Companies Listed on the Warsaw Stock Exchange. Krakow Review of Economics and Management/Zeszyty Naukowe Uniwersytetu Ekonomicznego w Krakowie, Krakow, n. 4(998), p. 11–28, 2023. DOI: 10.15678/ZNUEK.2022.0998.0401. Disponível em: https://krem.uek.krakow.pl/index.php/krem/article/view/2274.. Acesso em: 23 nov. 2024.