(1)
A Simple Explanation of Superconvergence for Discontinuous Galerkin Solutions to $\boldsymbol{u_t}$+$\boldsymbol{u_x}$=0. Commun. Comput. Phys. 2018, 21 (4), 905-912. https://doi.org/10.4208/cicp.OA-2016-0052.