Petrovas, A., S. Lisauskas, and R. Rinkevicienė. “System for Measuring Speed of Induction Motor”. Elektronika ir Elektrotechnika 101, no. 5 (April 27, 2010): 27-30. Accessed March 28, 2024. https://eejournal.ktu.lt/index.php/elt/article/view/9402.