LEWIS, G. M. XG40 - Rolls-Royce Advanced Fighter Engine Demonstrator. Defence Science Journal, [S. l.], v. 38, n. 4, p. 341–352, 2014. DOI: 10.14429/dsj.38.5867. Disponível em: https://publications.drdo.gov.in/ojs/index.php/dsj/article/view/5867. Acesso em: 29 jun. 2025.