Astudillo, Fernando Javier. “Illustrated Catalogue of Phytoliths from Modern Plants of the Galápagos Islands: Economic Species of San Cristóbal Island”. ACI Avances En Ciencias E Ingenierías, vol. 11, no. 3, Jan. 2020, pp. 40-91, https://doi.org/10.18272/aci.v11i3.969.