@article{luciano_albuquerque_castro_afonso_2005,  title={Nanocrystalline material in toroidal cores for current transformer: analytical study and computational simulations},  volume={8},  ISSN={1516-1439},  url={https://doi.org/10.1590/S1516-14392005000400007},  DOI={10.1590/S1516-14392005000400007},  number={4},  journal={Materials Research},  publisher={ABM, ABC, ABPol},  author={Luciano, Benedito Antonio and Albuquerque, João Marcelo Cavalcante de and Castro, Walman Benício de and Afonso, Conrado Ramos Moreira},  year={2005},  month={Oct},  pages={395–400} }