Natthaphon Artsawang, and Kasamsuk Ungchittrakool. 2021. “Rapid Gradient Penalty Schemes and Convergence for Solving Constrained Convex Optimization Problem in Hilbert Spaces”. Journal of Computational Analysis and Applications (JoCAAA) 29 (5):910-21. https://eudoxuspress.com/index.php/pub/article/view/202.