Abad, Victoria, and Jesús Sagredo. “Evolution and Process of Manufacture of ‘NEO’ Magnets Applied to Motors of Electric Vehicles”. Revista de Metalurgia 54, no. 3 (September 30, 2018): e127. Accessed December 1, 2022. https://revistademetalurgia.revistas.csic.es/index.php/revistademetalurgia/article/view/1441.