Hoa, Ha Minh. “Estimating the Geopotential Value W0 of the Local Geoid Based on Data from Local and Global Normal Heights of GPS/Leveling Points in Vietnam”. Geodesy and Cartography 39, no. 3 (September 26, 2013): 99-105. Accessed December 2, 2024. https://ijspm.vgtu.lt/index.php/GAC/article/view/4068.