Abdel Aziz, Khaled Mahmoud, and Loutfia Elsonbaty. “Effect of Using Different Satellite Ephemerides on GPS PPP and Post Processing Techniques”. Geodesy and Cartography 47, no. 3 (October 13, 2021): 104-110. Accessed November 25, 2024. https://gc.vgtu.lt/index.php/GAC/article/view/13762.