“The Continuous Classical Optimal Control of a Couple Nonlinear Hyperbolic Partial Differential Equations with Equality and Inequality Constraints” (2022) Iraqi Journal of Science, 57(2C), pp. 1528–1538. Available at: https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/7170 (Accessed: 4 May 2024).