1.
Gadjiev TS, Gasimova ER. On the smoothness of a solution of the first boundary-value problem for second-order degenerate elliptic-parabolic equations. Ukr. Mat. Zhurn. [Internet]. 2008Jun.25 [cited 2024Nov.24];60(6):723–736. Available from: https://umj.imath.kiev.ua/index.php/umj/article/view/3192