VILKANCAS, Renaldas. An empirical investigation on Omega optimised stock portfolio. Business: Theory and Practice, [S. l.], v. 15, n. 1, p. 58–70, 2014. DOI: 10.3846/btp.2014.06. Disponível em: https://journals.vilniustech.lt/index.php/BTP/article/view/8406. Acesso em: 9 may. 2025.