HA HUY, D.; LE DUY, H.; DOAN VAN, T.; BUI NGOC, M. Method of maintaining beamwidth when expanding coverage area in high-frequency surface wave radars. Journal of Military Science and Technology, [S. l.], n. RD, p. 38–45, 2021. Disponível em: https://jmst.mod.gov.vn/index.php/jmst/article/view/2348. Acesso em: 13 nov. 2026.