1. The story of the induction motor;Lamme B.G.;Journal of the American Institute of Electrical Engineers,1921
2. Polyphase induction motor performance and losses on nonsinusoidal voltage sources;Klingshirn E.A.;IEEE Transactions on Power Apparatus and Systems,1968
3. Preliminary investigation of an inverter fed 5‐phase induction motor;Ward E.E.;Proceedings of the Institution of Electrical Engineers,1969