YI, Yanmei. Research on cryptocurrency portfolio based on Markowitz model. Highlights in Business, Economics and Management, [S. l.], v. 32, p. 237–254, 2024. DOI: 10.54097/6q50bk41. Disponível em: https://drpress.org/ojs/index.php/HBEM/article/view/21061. Acesso em: 29 aug. 2026.