JUHÁSZ, M.; BÉKÉSI, B. Energy Resources of Unmanned Aircrat Vehicle. Economica, [S. l.], v. 7, n. 1, p. 92–100, 2020. DOI: 10.47282/ECONOMICA/2014/7/1/4311. Disponível em: https://ojs.lib.unideb.hu/economica/article/view/4311. Acesso em: 22 jan. 2022.