Vinh, Pham Chi, and Vu Thi Ngoc Anh. “An Approximate Secular Equation of Rayleigh Waves in an Elastic Half-Space Coated by a Thin Weakly Inhomogeneous Elastic Layer”. <i>Vietnam Journal of Mechanics</i> 37, no. 1 (February 26, 2015): 71–80. Accessed November 8, 2025. https://vjmech.vast.vn/vjmech/article/view/5900.