Zariņš, Ansis, Diāna Haritonova, Augusts Rubans, Gunārs Silabriedis, and Jānis Zvirgzds. “Field Tests of Astrometric Subsystem”. Geodesy and Cartography 42, no. 1 (April 8, 2016): 1-6. Accessed March 28, 2024. https://journals.vilniustech.lt/index.php/GAC/article/view/2510.