Modi, Y.K., D.J. De Beer, and S. Agrawal. “PHYSICAL MODELLING OF TERRAIN DIRECTLY FROM SURFER GRID AND ARC/INFO ASCII DATA FORMATS#”. The South African Journal of Industrial Engineering 23, no. 2 (November 5, 2011). Accessed April 29, 2024. http://sajie.journals.ac.za/pub/article/view/343.