1. Ghandi , S.K.“ Semiconductor Power Devices .”, John Wiley and Sons , 1977 .
2. Blaschke , P ; “ A New Method far the Structural Decoupling of AC Induction Machines . ”; Second I.F.A.C. Symposium on Multivariable Technical Control Systems , Dusseldarf , 11 – 13 October , 1971 , PT 3 , pp. 1 – 15 .
3. Shubenko , V.A. ; Shreiner , R.T. ; Gildebrand , A.D. “ Controlling the Flux Linkage of the Rotor of An Induction Motor In Frequency-Current Control . ”; Elekrichestvo , 1971 , No. 10 , pp. 13 – 18 .