Karpukov, L. M., V. O. Voskoboynik, I. V. Savchenko, and G. L. Kozina. “METHOD OF INCREASING INFORMATION SECURITY IN COMMUNICATION CHANNELS USING MICROWAVE FILTERS WITH ATTENUATION POLES AT PREDETERMINED FREQUENCIES”. Systems and Technologies, Vol. 64, no. 2, July 2023, pp. 64-74, doi:10.32782/2521-6643-2022.2-64.9.