Malischewsky PG, Forbriger T. May Rayleigh waves propagate with group- and phase-velocities of opposite sign in the valley of Mexico City?. Geofis Int [Internet]. 1 de abril de 2020 [citado 13 de mayo de 2026];59(2):101-4. Disponible en: https://revistagi.geofisica.unam.mx/index.php/RGI/article/view/121