Ali Al-Hawasy, Jamil A., and Eman H. Al-Rawdanee. 2019. “Numerical Solution for Classical Optimal Control Problem Governing by Hyperbolic Partial Differential Equation via Galerkin Finite Element-Implicit Method With Gradient Projection Method”. Ibn AL-Haitham Journal For Pure and Applied Sciences 32 (2): 71-80. https://doi.org/10.30526/32.2.2141.