WANG, Xinzhe. Portfolio Optimization of Five Stocks Based on the Mean-Variance Model. BCP Business & Management, [S. l.], v. 35, p. 687–693, 2022. DOI: 10.54691/bcpbm.v35i.3371. Disponível em: https://bcpublication.org/index.php/BM/article/view/3371. Acesso em: 14 aug. 2026.