Lê Hữu Ban, Nguyễn Nam Quý, Nguyễn Hải Minh, Điêu Như Kế, Nguyễn Quang Lượng. Investigating and evaluating the influence of drag ring diameter on the range of an ungovernable flying device in standard conditions. JMST [Internet]. 2022 Apr. 27 [cited 2024 Nov. 23];(78):159-65. Available from: https://en.jmst.info/index.php/jmst/article/view/412