NAMBOODIRI, M.; EKBOTE, S. B.; DHAMI, G. S. Production Technology of Lead Zirconate Titanate Type-4 Spherical Elements for Underwater Transducers. Defence Science Journal, [S. l.], v. 41, n. 4, p. 399–408, 2013. DOI: 10.14429/dsj.41.4501. Disponível em: https://publications.drdo.gov.in/ojs/index.php/dsj/article/view/4501. Acesso em: 6 jul. 2025.