1. P. VON KAEHNE, 1963, Report Ref, Z/T-142, Electrical Research Association, U.K. Unbalanced magnetic pull in rotating electrical machines. Survey of published work
2. Identification of principal factors causing unbalanced magnetic pull in cage induction motors;BINNS;Proceedings of the IEE,1973
3. Vibration in 2-pole induction motors related to slip frequency;SUMMERS;Transactions of the American IEE,1955
4. Running instability of cage induction motors caused by harmonic fields due to eccentricity. Part 1. Electromagnetic spring constant and electromagnetic damping coefficient. Part 2. Self-excited transverse vibration of the rotor;FRUCHTENICHT;Archives of Elektrotech,1982
5. R. BELMANS, W. GEYSEN, H. JORDAN, A. VANDENPUT, 1982, Proceedings, International Conference on Electrical Machines-Design and Application, London, 916, 921, Unbalanced magnetic pull and homopolar flux in three-phase induction motor with eccentric rotors