Вунтесмері, В., & Стоколос, М. (2008). The broadband nonreciprocal passive devices of very high frequencies. Visnyk NTUU KPI Seriia - Radiotekhnika Radioaparatobuduvannia, (37), 65-70. https://doi.org/10.20535/RADAP.2008.37.65-70