ALDASHEV, S. A. Well-Posedness of the Dirichlet and Poincaré Problems for the Wave Equation in a Many-Dimensional Domain. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 66, n. 10, p. 1414–1419, 2014. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/2232. Acesso em: 5 dec. 2025.