Castro-Heredia, L. C., and J. L. Oslinger. “Calculation Methodology of the Harmonic Magnetomotive Force and Its Relationship With the Sequence Components Slot Fem”. Ingenieria Y Universidad, vol. 17, no. 2, June 2013, pp. 339-54, doi:10.11144/Javeriana.iyu17-2.mpca.