Brown, R. J., Van Eaton, A. R., Hernández, W., Condren, P., Sweeney, C., Tournigand, P.-Y., & Vallance, J. W. (online). Ash aggregate-rich pyroclastic density currents of the 431 CE Tierra Blanca Joven eruption, Ilopango caldera, El Salvador. Journal of Volcanology and Geothermal Research, 439, Article 107845. https://doi.org/10.1016/j.jvolgeores.2023.107845