DROFF, Josselin. The European military helicopter industry: Trends and perspectives. The Economics of Peace and Security Journal, [S. l.], v. 12, n. 1, 2017. DOI: 10.15355/epsj.12.1.20. DisponĂ­vel em: https://www.epsjournal.org.uk/index.php/EPSJ/article/view/286. Acesso em: 18 apr. 2024.