AKHTAEVA, N. S.; KARIMOV, E. T. A boundary value problem with adjointing condition of integral type for mixed parabolic - hyperbolic equations with non-characteristic line type change. Journal of Mathematics, Mechanics and Computer Science, [S. l.], v. 77, n. 2, p. 64–70, 2013. Disponível em: https://bm.kaznu.kz/index.php/kaznu/article/view/96. Acesso em: 22 jul. 2024.