Numerical Solution for Classical Optimal Control Problem Governing by Hyperbolic Partial Differential Equation via Galerkin Finite Element-Implicit method with Gradient Projection Method. IHJPAS [Internet]. 2019 May 20 [cited 2024 May 8];32(2):71-80. Available from: https://jih.uobaghdad.edu.iq/index.php/j/article/view/2141