ЛИТВИНЦЕВ, С. Н.; ЗАХАРОВ, А. В. Expansion method of bandstop for compline bandpass filters. Visnyk NTUU KPI Seriia - Radiotekhnika Radioaparatobuduvannia, [S. l.], n. 79, p. 16-23, 2019. DOI: 10.20535/RADAP.2019.79.16-23. Disponível em: http://radap.kpi.ua/radiotechnique/article/view/1607. Acesso em: 27 nov. 2021.