Mingsheng, C. ., W. . Xianliang, S. . Wei, and H. . Zhixiang. “Fast Frequency Sweep Scattering Analysis for Multiple PEC Objects”. Applied Computational Electromagnetics Society Journal (ACES), vol. 22, no. 2, June 2022, pp. 250-3, https://journals.riverpublishers.com/index.php/ACES/article/view/16331.