Al-Hawasy, J.A.A. and Al-Ajeeli, N.A.T. (2021) “The Continuous Classical Boundary Optimal Control of Triple Nonlinear Elliptic Partial Differential Equations with State Constraints”, Iraqi Journal of Science, 62(9), pp. 3020–3030. doi:10.24996/ijs.2021.62.9.17.