IL'MAN, V. M.; KAPUSTYAN, V. E. Singularities of Solutions of One Class of Equations of Continuum Mechanics. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 55, n. 1, p. 12–21, 2003. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/3883. Acesso em: 6 dec. 2025.