Velasco-García, M.V., Valdez-Hernández, J.I., Ramírez-Herrera, C. and Hernández-Hernández, M.L. 2017. Forest characteristics, population structure and life-stages diversity of Dioon holmgrenii (Cycadales: Zamiaceae). Revista de Biología Tropical. 65, 4 (Dec. 2017), 1609–1624. DOI:https://doi.org/10.15517/rbt.v65i4.26980.