TAWFIQ, L. N. M.; HILAL, M. M. Solution of 2nd Order Nonlinear Three-Point Boundary Value Problems By Semi-Analytic Technique. Ibn AL-Haitham Journal For Pure and Applied Sciences, [S. l.], v. 27, n. 3, p. 501–512, 2017. Disponível em: https://jih.uobaghdad.edu.iq/index.php/j/article/view/315. Acesso em: 28 jun. 2022.