Al-Hawasy JAA, Al-Ajeeli NAT. The Continuous Classical Boundary Optimal Control of Triple Nonlinear Elliptic Partial Differential Equations with State Constraints. Iraqi Journal of Science [Internet]. 2021 Sep. 30 [cited 2026 Jan. 9];62(9):3020-3. Available from: https://www.ijs.uobaghdad.edu.iq/index.php/eijs/article/view/2659