Semenchuk, A. V., PetrusenkoІ. V., and Ya. V. Chumachenko. “THE NEW SOLUTION OF THE CANONICAL PROBLEM SCATTERING OF WAVEGUIDE MODES ON A CIRCULAR CONDUCTING CYLINDER”. METHODS AND DEVICES OF QUALITY CONTROL0, no. 2(41) (December 2, 2018): 100-112. Accessed February 27, 2020. http://mpky.nung.edu.ua/index.php/mpky/article/view/467.