OKON, Tomasz; WILKOSZ, Kazimierz. Load Flow Computations in Different Coordinate Systems for a Power System with UPFC. Elektronika ir Elektrotechnika, [S. l.], v. 22, n. 5, p. 20–25, 2016. DOI: 10.5755/j01.eie.22.5.16338. Disponível em: https://eejournal.ktu.lt/index.php/elt/article/view/16338.. Acesso em: 23 jan. 2026.