Gravitation nonlinear surface waves propagation in a dispersion model that is parameter degenerate. Neliniini Kolyvannya, [S. l.], v. 18, n. 3, p. 388–393, 2015. Disponível em: https://twinhead.imath.kiev.ua/index.php/nosc/article/view/794. Acesso em: 21 jan. 2026.