P. Angielczyk, Ł. Sosnowski, A. Kołtun, M. Rup, Ł. Sapuła. “Management System for a Transformer Substation With Energy Storage”. Acta Energetica, no. 04 (December 31, 2018): 27–34. Accessed September 13, 2025. https://www.actaenergetica.org/index.php/journal/article/view/129.