Dufour, J., C. Negro, R. Latorre, F. López-Mateos, and A. Formoso. “Obtaining Processes of M-Type Hexaferrites”. Revista de Metalurgia 31, no. 2 (April 30, 1995): 111–119. Accessed April 24, 2024. https://revistademetalurgia.revistas.csic.es/index.php/revistademetalurgia/article/view/974.