Назарько, А., Тимофєєва, Ю., & Нелін, Є. (2010). Efficiency of electromagnetic crystals discontinuities. Visnyk NTUU KPI Seriia - Radiotekhnika Radioaparatobuduvannia, (40), 141-143. https://doi.org/10.20535/RADAP.2010.40.141-143