Бурим, О., and В. Вунтесмері. “The Use of Non-Reciprocal Passive Devices in the EHF-Therapy”. Visnyk NTUU KPI Seriia - Radiotekhnika Radioaparatobuduvannia, no. 42, May 2010, pp. 152-6, doi:10.20535/RADAP.2010.42.152-156.