PINNOJI, P. K.; MAHAJAN, P. Two Wheeler Helmets with Ventilation and Metal Foam. Defence Science Journal, [S. l.], v. 58, n. 2, p. 304–311, 2008. DOI: 10.14429/dsj.58.1650. Disponível em: https://publications.drdo.gov.in/ojs/index.php/dsj/article/view/1650. Acesso em: 9 jun. 2025.