“A High-Order Time Domain Discontinuous Galerkin Method with Orthogonal Tetrahedral Basis for Electromagnetic Simulations in 3-D Heterogeneous Conductive Media”, Commun. Comput. Phys., vol. 21, no. 4, pp. 1065–1089, Apr. 2018, doi: 10.4208/cicp.OA-2016-0089.