Kukuseva Paneva, Maja, Goce Stefanov, and Vasilija Sarac. “Sine Inverter System Based on Special Circuit ”. Balkan Journal of Applied Mathematics and Informatics 3, no. 2 (December 3, 2020): 31-42. Accessed September 17, 2021. https://js.ugd.edu.mk/index.php/bjami/article/view/3665.