QUANG A, Dang; HUONG, Nguyen Thanh. Existence results and numerical solution of fully fourth order nonlinear functional differential equations. Journal of Computer Science and Cybernetics, [S. l.], v. 39, n. 4, p. 393–406, 2023. DOI: 10.15625/1813-9663/18833. Disponível em: https://jcc.vast.vn/jcc/article/view/18833. Acesso em: 4 nov. 2025.