Koroche, Kedir Aliyi. “Lax-Wendroff Difference Scheme With Richardson Extrapolation Method for One Dimensional Wave Equation Subjected To Integral Condition: Solution of Wave Equation”. International Journal of Mathematics and Physics 12, no. 2 (December 27, 2021): 8–22. Accessed April 29, 2024. https://ijmph.kaznu.kz/index.php/kaznu/article/view/342.