1. Stepping motors: a guide to modern theory and practice;Acarnley,1982
2. Detection of rotor position in stepping and switched reluctance motors by monitoring of current waveforms;Acarnley;IEEE Transactions,1985
3. Position estimation in switched-reluctance drives;Acarnley,1995
4. Apparatus for producing electromotive force of special waveform;Alexanderson,1917
5. Adaptive input-output linearization of a switched reluctance motor for torque control;Amor,1993