Hernández Z., J. l., and E. Suaste G. “Development of Basic Technology for the Manufacture of Piezoelectric Material for Ultrasound”. Revista Mexicana de Ingenieria Biomedica 12, no. 2 (June 15, 1991): 11. Accessed June 26, 2025. https://ns1.rmib.com.mx/index.php/rmib/article/view/830.