Power System State Estimation using Optimally placed PMUs. International Journal of Advance Engineering and Research Development (IJAERD), [S. l.], v. 5, n. 3, p. 1232–1235, 2018. Disponível em: https://ijaerd.org/index.php/IJAERD/article/view/2891. Acesso em: 8 sep. 2025.