Akylbayev, M.I., and I.E. Kaspirovich. “On Some Estimations of Deviations Between Real Solution and Numerical Solution of Dynamical Equations With Regard for Baumgarte Constraint Stabilization”. Bulletin of the Karaganda University. Mathematics Series 113, no. 1 (March 29, 2024): 21–27. Accessed August 31, 2025. https://mts.buketov.edu.kz/index.php/mathematics-vestnik/article/view/681.