Al Shouny A, Hussien AA, Sedeek A. Reliable Digital Terrain Modeling Using PPK GNSS Observations and Leveling-Constrained TIN Interpolation. Civ Eng J [Internet]. 2026 Jun. 1 [cited 2026 Jul. 7];12(6):2501-1. Available from: https://www.civilejournal.org/index.php/cej/article/view/6894