Артеменко , М. Ю., Д. О. Петров, and Ю. В. Кутафін. “One-Port Power Conservative Equivalent Circuit of DC Network With Dependent Voltage Sources”. Visnyk NTUU KPI Seriia - Radiotekhnika Radioaparatobuduvannia, no. 85, June 2021, pp. 5-13, doi:10.20535/RADAP.2021.85.5-13.