Matus, P. P., and A. N. Zyl. “Difference Schemes of High Order Accuracy for Mathematical Physics Problems in Arbitrary Domains”. Mathematical Modelling and Analysis 5, no. 1 (December 15, 2000): 133-142. Accessed November 25, 2024. https://jcem.vgtu.lt/index.php/MMA/article/view/9952.