SAMOILENKO, V. G.; SAMOILENKO, Yu. I. Asymptotic two-phase solitonlike solutions of the singularly perturbed Korteweg-de Vries equation with variable coefficients. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 60, n. 3, p. 388–397, 2008. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/3162. Acesso em: 5 dec. 2025.