DEMIRDELEN, T.; KAYAALP, R. I.; TUMAY, M. Modeling and Analysis of a Multilevel Parallel Hybrid Active Power Filter. Engineering, Technology & Applied Science Research, Greece, v. 6, n. 3, p. 976–981, 2016. DOI: 10.48084/etasr.665. Disponível em: https://www.etasr.com/index.php/ETASR/article/view/665. Acesso em: 17 sep. 2021.