QUÝ. OPTIMIZATION OF ORBITAL STRUCTURE OF SATELLITE CONSTELLATIONS TO PROVIDE CONTINUOUS COVERAGE OF NEAR-EARTH SPACE SPHERICAL LAYER. Journal of Military Science and Technology, [S. l.], n. 69, p. 21–31, 2020. DOI: 10.54939/1859-1043.j.mst.69.2020.21-31. Disponível em: https://jmst.mod.gov.vn/index.php/jmst/article/view/141. Acesso em: 12 mar. 2026.