YUN, Hezi. Portfolio Optimization Based on 9 Chinese Stocks. Highlights in Business, Economics and Management, [S. l.], v. 40, p. 586–593, 2024. DOI: 10.54097/xg4n2r26. Disponível em: https://drpress.org/ojs/index.php/HBEM/article/view/24583. Acesso em: 5 may. 2026.