Dinh, Cong Hoa, and Thi Thuy Hoang. “Apply Information Technology in Problem of the Transform Reference System of Digital Topographic Map”. Journal of Geodesy and Cartography, no. 31 (March 1, 2017): 59–64. Accessed November 7, 2024. https://jgac.vn/index.php/journal/article/view/212.