Fast Two-Grid Finite Element Algorithm for a Fractional Klein- Gordon Equation. Contemporary Mathematics , [S. l.], v. 5, n. 2, p. 1164–1180, 2024. DOI: 10.37256/cm.5220244041. Disponível em: https://ojs353.mebyme.cn/index.php/CM/article/view/4041. Acesso em: 24 dec. 2025.