García, L., A. Cores, A. Formoso, and A. Babich. “Pig Iron Production in the Countries of European Community”. Revista de Metalurgia 33, no. 6 (December 30, 1997): 403–415. Accessed April 20, 2024. https://revistademetalurgia.revistas.csic.es/index.php/revistademetalurgia/article/view/836.