“The Continuous Classical Optimal Control of a Couple Nonlinear Hyperbolic Partial Differential Equations With Equality and Inequality Constraints”. Iraqi Journal of Science 57, no. 2C (June 24, 2022): 1528–1538. Accessed November 22, 2024. https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/7170.