HARTLEY, Keith. Defense economics: Achievements and challenges. The Economics of Peace and Security Journal, [S. l.], v. 2, n. 1, 2007. DOI: 10.15355/2.1.45. Disponível em: https://www.epsjournal.org.uk/index.php/EPSJ/article/view/41. Acesso em: 7 may. 2024.