“A Family of Characteristic Discontinuous Galerkin Methods for Transient Advection-Diffusion Equations and Their Optimal-Order L2 Error Estimates”, Commun. Comput. Phys., vol. 6, no. 1, pp. 203–230, Jun. 2009, Accessed: Dec. 05, 2025. [Online]. Available: https://www.global-sci.com/index.php/cicp/article/view/5647