PETROVAS, A.; LISAUSKAS, S.; RINKEVICIENĖ, R. System for Measuring Speed of Induction Motor. Elektronika ir Elektrotechnika, [S. l.], v. 101, n. 5, p. 27-30, 2010. Disponível em: https://eejournal.ktu.lt/index.php/elt/article/view/9402. Acesso em: 27 sep. 2022.