KITAYBEKOV, E. T. Solvability Dirichlet problem for three-dimensional elliptic-parabolic equations with type and order extinction. Journal of Mathematics, Mechanics and Computer Science, [S. l.], v. 92, n. 4, p. 40–45, 2018. Disponível em: https://bm.kaznu.kz/index.php/kaznu/article/view/452. Acesso em: 26 sep. 2024.