Microstrip directional coupler. Visnyk NTUU KPI Seriia - Radiotekhnika Radioaparatobuduvannia, [S. l.], n. 43, p. 157–160, 2010. DOI: 10.20535/RADAP.2010.43.157-160. Disponível em: https://radap.kpi.ua/radiotechnique/article/view/226. Acesso em: 13 mar. 2025.