• Sensorless detection of induction motor faults using the clarke vector approachVaimann, Toomas; Kallaste, Ants; Kilk, AleksanderScientific journal of Riga Technical University. Serija 4, Power and electrical engineering2011 / p. 43-48 : ill https://www.researchgate.net/publication/258547195_Sensorless_Detection_of_Induction_Motor_Rotor_Faults_Using_the_Clarke_Vector_Approach