On Smooth Solution for a Nonlinear 5th Order Equation of KdV Type. Journal of Partial Differential Equations, [S. l.], v. 8, n. 4, p. 321–332, 2020. Disponível em: https://global-sci.com/index.php/jpde/article/view/3807. Acesso em: 6 dec. 2025.