ZHANG, Z.; ZHOU, L. Sensorless Control of a Ferrite PM Assisted-Synchronous Reluctance Machines by Using Sliding Mode Observer and High Frequency Signal Injection. Elektronika ir Elektrotechnika, [S. l.], v. 22, n. 4, p. 11 - 15, 2016. DOI: 10.5755/j01.eie.22.4.15906. Disponível em: https://eejournal.ktu.lt/index.php/elt/article/view/15906. Acesso em: 29 nov. 2021.