Design of a regulator of frequency, for small central hydroelectric in isolated operation. ITEGAM-JETIA, [S. l.], v. 4, n. 13, p. 140–148, 2018. DOI: 10.5935/2447-0228.201862. Disponível em: https://itegam-jetia.org/journal/index.php/jetia/article/view/62. Acesso em: 23 oct. 2026.