Zein, S, E Canot, J Erhel, and N Nassif. “Determination and Sensitivity Analysis of the Seismic Velocity of a Shallow Layer from Refraction Traveltimes Measures”. The International Journal of Multiphysics 2, no. 4 (December 31, 2008): 437-456. Accessed January 11, 2026. https://themultiphysicsjournal.com/index.php/ijm/article/view/2-4-437.