Vinh, P. C., Tuan, T. T. and Hue, L. T. (2017) “Approximate formula for the H/V ratio of Rayleigh waves in incompressible orthotropic half-spaces coated by a thin elastic layer”, Vietnam Journal of Mechanics. Hanoi, Vietnam, 39(4), pp. 365–374. doi: 10.15625/0866-7136/10033.