Directed coupler-conectors. Visnyk NTUU KPI Seriia - Radiotekhnika Radioaparatobuduvannia, [S. l.], n. 36, p. 171–173, 2008. DOI: 10.20535/RADAP.2008.36.171-173. Disponível em: https://radap.kpi.ua/radiotechnique/article/view/746. Acesso em: 13 mar. 2025.