DIAS, Rui; TEIXEIRA, Nuno; MACHOVA, Veronika; PARDAL, Pedro; HORAK, Jakub; VOCHOZKA, Marek. Random walks and market efficiency tests: evidence on US, Chinese and European capital markets within the context of the global Covid-19 pandemic. Oeconomia Copernicana, [S. l.], v. 11, n. 4, p. 585–608, 2020. DOI: 10.24136/oc.2020.024. Disponível em: https://journals.economic-research.pl/oc/article/view/1845. Acesso em: 2 may. 2024.