Г., Utessov А., Shanauov Р., and Amanov Н. “ON LIMIT ERROR OF THE OPTIMAL DISCRETIZATION OPERATOR FOR SOLUTION OF POISSON EQUATION”. Bulletin of Abai KazNPU. Series of Physical and mathematical sciences 87, no. 3 (September 27, 2024): 57–69. Accessed January 11, 2025. https://bulletin-phmath.kaznpu.kz/index.php/ped/article/view/2011.