ALDASHEV, S. A.; KITAIBEKOV, E. T. Well-posedness of the Dirichlet problem in a cylindrical domain for three-dimensional elliptic equations with degeneration of type and order. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 69, n. 9, p. 1270–1274, 2017. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/1778. Acesso em: 6 dec. 2025.