[1]
E. L. Tsvetkov, “On regularity of generalized solutions of the third boundary-value problem for an elliptic difference-differential equation”, Ukr. Mat. Zhurn., vol. 47, no. 1, pp. 93–104, Jan. 1995, Accessed: Dec. 05, 2025. [Online]. Available: https://umj.imath.kiev.ua/index.php/umj/article/view/5386