@ARTICLE {22633,
author={VMM Machado and J. Fernandes Fernandes and P. J.Costa Branco Branco},
doi={10.1109/TEC.2017.2696164},
journal={IEEE Transactions on Energy Conversion},
title={Magnetic Field Analysis in Shell-Like Spherical Induction Machines with Zenithal Traveling Waves},
year={2017},
month={September},
volume={32},
number={3},
pages={1081-1089},
ISSN={0885-8969}
}