NGUYEN, N. L. New signals from the new generation GPS satellites. Journal of Geodesy and Cartography, [S. l.], n. 1, p. 25–29, 2009. DOI: 10.54491/jgac.2009.1.621. Disponível em: https://jgac.vn/index.php/journal/article/view/621. Acesso em: 15 nov. 2026.