Sánchez-Velásquez, L. R., R. G. Jiménez G., and B. F. Benz. “Population Structure and Ecology of a Tropical Rare Rhizomatous Species of Teosinte <i>Zea diploperennis</i≪ (Gramineae)”. Revista De Biología Tropical, vol. 49, no. 1, Mar. 2001, pp. 249–258, https://www.revistas.ucr.ac.cr/index.php/rbt/article/view/16915.