Bustillos A., Jorge, Jorge E. Romero, Liliana Troncoso, y Alicia Guevara C. «Tephra Fall at Tungurahua Volcano (Ecuador) – 1999-2014: An Example of Tephra Accumulation from a Long-Lasting Eruptive CycleTephra Fall at Tungurahua Volcano (Ecuador) – 1999-2014: An Example of Tephra Accumulation from a Long-Lasting Eruptive Cycle». Geofísica Internacional 55, no. 1 (diciembre 31, 2015): 55–67. Accedido abril 14, 2026. https://revistagi.geofisica.unam.mx/index.php/RGI/article/view/57.