HÄMMERLI, B.; ZWICKY, R. A ROTOR SPEED DETECTOR FOR INDUCTION MACHINES: THE SIGNAL PROCESSING PART Periodica Polytechnica Electrical Engineering, [S. l.], v. 33, n. 4, p. 251–262, 1989. Disponível em: https://pp.bme.hu/ee/article/view/4602. Acesso em: 27 dec. 2024.