1. P. C. Krause, “Analysis of Electric Machinery”, McGraw-Hill Inc.,New York, 1986.
2. P. Jereb, Fundamental transformations at electric machines analysis, Electrotechnical Review vol.4, Ljubljana, Slovenia, 1979, 222–231.
3. R. Filer, Influence of double squirrel-cage rotor construction parameters on induction motor torque characteristics, Master’s thesis, Ljubljana, 1989.
4. H. R. Fudeh, C. M. Ong, Modeling and analysis of induction machines containing space harmonics, Part I, IEEE Transaction, Vol. PAS-102, No. 8, August 1983, 2608–2615.
5. A. Patyk, Application of forward/backward components to the analysis of failure states of the squirrel-cage motor, Archiv fuer Elektrotechnik 69 (1986), 429–437.