[1]
T. S. Gadjiev and E. R. Gasimova, “On the smoothness of a solution of the first boundary-value problem for second-order degenerate elliptic-parabolic equations”, Ukr. Mat. Zhurn., vol. 60, no. 6, pp. 723–736, Jun. 2008, Accessed: Dec. 05, 2025. [Online]. Available: https://umj.imath.kiev.ua/index.php/umj/article/view/3192