SAMOILENKO, V. G.; SAMOILENKO, Yu. I. Asymptotic m-phase soliton-type solutions of a singularly perturbed Korteweg?de Vries equation with variable coefficients. II. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 64, n. 8, p. 1089–1105, 2012. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/2643. Acesso em: 14 apr. 2025.