The Continuous Classical Boundary Optimal Control of Triple Nonlinear Elliptic Partial Differential Equations with State Constraints. Iraqi Journal of Science, [S. l.], v. 62, n. 9, p. 3020–3030, 2021. DOI: 10.24996/ijs.2021.62.9.17. Disponível em: https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/2659.. Acesso em: 25 nov. 2024.