“Supporting Linear Least Square Filter by Adding New Mathematical Conditions for Solving Ambiguity in Precise Point Positioning and Comparative Study Versus Kalman Filter” (2021) Latakia University Journal -Engineering Sciences Series, 43(1). Available at: https://journal.latakia-univ.edu.sy/index.php/engscnc/article/view/10342 (Accessed: 13 October 2026).