ÇELIK, A.; ULU, Çağrı. Testing the Price Bubbles in Cryptocurrencies using Sequential Augmented Dickey-Fuller (SADF) Test Procedures: A Comparison for Before and After COVID-19. Scientific Annals of Economics and Business, Iasi, Romania, v. 70, n. 1, p. 1–15, 2023. DOI: 10.47743/saeb-2023-0005. Disponível em: https://saeb.feaa.uaic.ro/index.php/saeb/article/view/1648. Acesso em: 25 jun. 2024.