LI, Yanru. Portfolio Optimization for Several Industries among the U.S. Stock Market. BCP Business & Management, [S. l.], v. 38, p. 1523–1529, 2023. DOI: 10.54691/bcpbm.v38i.3927. Disponível em: https://bcpublication.org/index.php/BM/article/view/3927. Acesso em: 15 sep. 2026.