Heavy Ball Flexible GMRES Method for Nonsymmetric Linear Systems. Journal of Computational Mathematics, [S. l.], v. 40, n. 5, p. 711–727, 2022. DOI: 10.4208/jcm.2101-m2019-0243. Disponível em: https://global-sci.com/index.php/JCM/article/view/23368. Acesso em: 5 dec. 2025.