1. Bollee, B. (1969), “Electrostatic motors”,Philips Tech., Rev., Vol. 30, pp. 178‐94.
2. Carter, F.W. (1901), “Airgap induction”,Electrical World, Vol. 38, pp. 884‐8.
3. Carter, F.W. (1911), “Magnetic centering of dynamo‐electric machinery”,Proc. Inst. of Civil Eng., Vol. 187, pp. 311‐18.
4. Carter, F.W. (1926), “The magnetic field of the dynamo‐electric machine”,Journal IEE, Vol. 64, pp. 1115‐38.
5. Finch, J.W. (1985), “Switched reluctance motors with multiple teeth per pole: philosophy of design”,Proc. IEE Conference on Electrical Machines – Design and Application, London, pp. 134‐8.