Dushkin, Vladimir D., Stanislav Zhuchenko, and Oleksii V. Kostenko. 2019. “Discrete Mathematical Model of the Scattering Process of E-Polarized Wave on a Periodic Impedance Grating”. Visnyk of V. N. Karazin Kharkiv National University. Ser. Mathematics, Applied Mathematics and Mechanics 90 (December), 4-25. https://doi.org/10.26565/2221-5646-2019-90-01.