Bingxin, Li, and Zhang Baorong. “Space-Frequency Domain Iterative Method for Modes Analysis of Planar Waveguides”. Applied Computational Electromagnetics Society Journal (ACES) 30, no. 08 (August 22, 2021): 819–823. Accessed August 15, 2024. https://journals.riverpublishers.com/index.php/ACES/article/view/10419.