The Periodic Initial Value Problem and Initial Value Problem for the Modified Boussinesq Approximation. Journal of Partial Differential Equations, [S. l.], v. 15, n. 2, p. 57–71, 2002. Disponível em: https://global-sci.com/index.php/jpde/article/view/14861. Acesso em: 6 dec. 2025.