Tavbaev J, Saparov B, and Kholikulov E. “SOLUTION OF THE BOUNDARY VALUE PROBLEM OF A SEMI-INFINITE WAVEGUIDE”. Galaxy International Interdisciplinary Research Journal 9, no. 11 (November 10, 2021): 201–204. Accessed April 11, 2025. https://giirj.com/index.php/giirj/article/view/473.