JELER, G. E. BRIEF HISTORICAL MILESTONES ON THE EVOLUTION OF UAV SYSTEMS: 1914 - 1939. BULLETIN OF "CAROL I" NATIONAL DEFENCE UNIVERSITY, [S. l.], v. 9, n. 3, p. 137–143, 2020. DOI: 10.12753/2284-9378-20-50. Disponível em: https://revista.unap.ro/index.php/bulletin/article/view/670. Acesso em: 8 may. 2024.