Jianxiong Li, and Wei Jiao. “Effective CFS-PML Formulations Based on 2-D TE Phi BOR-FDTD for the Drude Model”. Applied Computational Electromagnetics Society Journal (ACES), vol. 33, no. 04, July 2021, pp. 438-42, https://journals.riverpublishers.com/index.php/ACES/article/view/9189.