Henrico I, Henrico S, Coetzee S. A comparison between two DEM products to calculate a visibility analysis for military operations using FOSSGIS . GFDQ [Internet]. 2024 May 28 [cited 2024 Sep. 20];43(1):157-65. Available from: https://www.gfdq.glaciologia.it/index.php/GFDQ/article/view/49