KAŹMIERSKA-JÓŹWIAK, Bogna; SEKUŁA, Paweł; SOCHA, Błażej. Analysis of the effects of COVID-19 on companies listed on the Warsaw Stock Exchange. Forum Scientiae Oeconomia, [S. l.], v. 9, n. 4, p. 99–116, 2021. DOI: 10.23762//FSO_VOL9_NO4_5. Disponível em: https://ojs.wsb.edu.pl/index.php/fso/article/view/447. Acesso em: 18 sep. 2026.