Vinh, Pham Chi, and Peter G. Malischewsky. “Improved Approximations for the Rayleigh Wave Velocity in [-1, 0.5]”. Vietnam Journal of Mechanics 30, no. 4 (December 31, 2008): 347 – 358. Accessed November 8, 2025. https://vjmech.vast.vn/vjmech/article/view/5640.