S. U. Chung, J. M. Kim, D. H. Koo, B. C. Woo, D. K. Hong, J. Y. Lee, "Fractional slot
concentrated winding permanent magnet synchronous machine with consequent pole rotor
for low speed direct drive", IEEE Transactions on Magnetics, Vol. 48, No. 11, pp.
2965-2968, Nov 2012
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