“A NOVEL FAULT TOLERANT ASYMMETRICAL 21-LEVEL INVERTER TOPOLOGY WITH REDUCED COMPONENTS”. REVUE ROUMAINE DES SCIENCES TECHNIQUES — SÉRIE ÉLECTROTECHNIQUE ET ÉNERGÉTIQUE 68, no. 2 (July 3, 2023): 200–205. Accessed May 25, 2024. https://journal.iem.pub.ro/rrst-ee/article/view/310.