AIUPPA., A.; ROTOLO, S. G.; VILLA, I. M. Stratigraphy, geochemistry and geochronology of a Quaternary pyroclastic sequence of the Chichontepec volcano, El Salvador. Revista geológica de América central, [S. l.], v. 22, 2013. DOI: 10.15517/rgac.v0i22.8588. Disponível em: https://revistas.ucr.ac.cr/index.php/geologica/article/view/8588. Acesso em: 19 dic. 2024.