LIMARCHENKO, O. S. Specific features of application of perturbation techniques in problems of nonlinear oscillations of a liquid with free surface in cavities of noncylindrical shape. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 59, n. 1, p. 44–70, 2007. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/3291. Acesso em: 6 dec. 2025.