Nguyễn Văn Hiếu, Lê Mạnh Cường, and A. Phan Huy. “Navigation System Using Landmark Images for Combat UCAVs”. Journal of Military Science and Technology, no. 80, June 2022, pp. 178-82, doi:10.54939/1859-1043.j.mst.80.2022.178-182.