Feng, Naixing, Jianxiong Li, and Xiaoming Zhao. “Unsplit-Field Implementation of the Higher-Order PML Using Z-Transform Method and D-B Formulation for Arbitrary Media”. Applied Computational Electromagnetics Society Journal (ACES) 28, no. 03 (October 6, 2021): 195–202. Accessed May 13, 2026. https://journals.riverpublishers.com/index.php/ACES/article/view/11649.