Нелін, Є. А., and А. В. Шульга. “Criteria of Impedance Inhomogeneities Approaching by Delta-Inhomogeneities”. Visnyk NTUU KPI Seriia - Radiotekhnika Radioaparatobuduvannia0, no. 63 (December 30, 2015): 127-135. Accessed March 28, 2024. https://radap.kpi.ua/radiotechnique/article/view/1157.