XIONG, Tianying; HE, Ruhai; ZHU, Yichen; WANG, Haotian. Investment Portfolio’s Efficiency Evaluation for Markowitz Model and the Index Model. BCP Business & Management, [S. l.], v. 26, p. 887–897, 2022. DOI: 10.54691/bcpbm.v26i.2051. Disponível em: https://bcpublication.org/index.php/BM/article/view/2051. Acesso em: 4 jun. 2026.