Smolkin, Eugene, and Yury Smirnov. “Mathematical Theory of Normal Waves in an Open Metal-Dielectric Regular Waveguide of Arbitrary Cross Section”. Mathematical Modelling and Analysis 25, no. 3 (May 13, 2020): 391-408. Accessed December 22, 2024. https://jeelm.vgtu.lt/index.php/MMA/article/view/10682.