Trubin, A. A. “Scattering of Electromagnetic Waves by Loss and Gain Systems of Dielectric Resonators”. Visnyk NTUU KPI Seriia - Radiotekhnika Radioaparatobuduvannia, no. 97 (September 30, 2024): 58-66. Accessed November 21, 2024. https://radap.kpi.ua/radiotechnique/article/view/1994.