SWAROOP, R.; KULDEEP, M. K. Reduce Harmonics in Single Phase 28- Echelon Cascaded Multilevel Inverter with Filter. International Journal on Recent Technologies in Mechanical and Electrical Engineering, [S. l.], v. 5, n. 6, p. 42–44, 2018. Disponível em: https://ijrmee.org/index.php/ijrmee/article/view/325. Acesso em: 16 jul. 2024.