PETROSIAN, R. Algorithm for calculating the power system voltage frequency using quadrature components. Problems of Informatization and Control, [S. l.], v. 2, n. 78, p. 69–76, 2024. DOI: 10.18372/2073-4751.78.18963. Disponível em: http://jrnl.kai.edu.ua/index.php/PIU/article/view/18963. Acesso em: 6 may. 2026.