Grouni, S., R. Ibtiouen, M. Kidouche, and O. Touhami. 2010. “Real Time Rotor Flux Estimation for Induction Machine Drives: An Experimental Approach”. Elektronika Ir Elektrotechnika 104 (8):69-72. https://eejournal.ktu.lt/index.php/elt/article/view/9230.