Rodríguez-Castellanos, A., R. Ávila-Carrera, and F. J. Sánchez-Sesma. “Scattering of Rayleigh-Waves by Surface-Breaking Cracks: An Integral Formulation”. Geofisica Internacional, vol. 46, no. 4, Oct. 2007, pp. 241-8, doi:10.22201/igeof.00167169p.2007.46.4.48.