“Error Control in Multi-Element Generalized Polynomial Chaos Method for Elliptic Problems with Random Coefficients”, Commun. Comput. Phys., vol. 5, no. 2-4, pp. 793–820, Apr. 2018, Accessed: Feb. 26, 2026. [Online]. Available: https://www.global-sci.com/index.php/cicp/article/view/5635