ALMUTHAYBIRI, S. S.; JONNALAGADDA, J. M.; TISDELL, C. C. Existence and uniqueness of solutions to discrete, third-order three-point boundary value problems. CUBO, A Mathematical Journal, [S. l.], v. 23, n. 3, p. 441–455, 2021. DOI: 10.4067/S0719-06462021000300441. Disponível em: https://cubo.ufro.cl/ojs/index.php/cubo/article/view/2853. Acesso em: 25 apr. 2024.