SAIFULLAH , S.; SHAHID , S. .; ZADA, A. . Existence theory and stability analysis to a coupled nonlinear fractional mixed boundary value problem. Journal of Fractional Calculus and Nonlinear Systems, [S. l.], v. 4, n. 1, p. 35–53, 2023. DOI: 10.48185/jfcns.v4i1.714. Disponível em: https://sabapub.com/index.php/jfcns/article/view/714. Acesso em: 24 may. 2026.