SAYED, S. M. .; MOHAMED, A. S. .; EL-DAHAB, E. M. A.; YOUSSRI, Y. H. . Alleviated Shifted Gegenbauer Spectral Method for Ordinary and Fractional Differential Equations. Contemporary Mathematics, [S. l.], v. 5, n. 2, p. 4123–4149, 2024. DOI: 10.37256/cm.5220244559. Disponível em: https://ojs.wiserpub.com/index.php/CM/article/view/4559. Acesso em: 18 jun. 2024.