1. Electrical machines and drives for electric, hybrid, and fuel cell vehicles;Zhu Z. Q.;Proc. IEEE,2007
2. Axial Flux Permanent Magnet Brushless Machines
3. Achievable force densities for permanent magnet excited machines in new configurations;Weh H.;Proc. Int. Conf. Elect. Mach. Drives,1986
4. Calculation and design consideration for synchronous machines with transverse flux configuration;Weh H.;Archiv fur Elektrotechnik,1988