Pérez-Farrera, Miguel A., Andrew P. Vovides, Dolores González, Sergio López, Luis Hernandez-Sandoval, and Mahinda Martínez. 2016. “Estimation of Genetic Variation in Closely Related Cycad Species in Ceratozamia (Zamiaceae: Cycadales) Using RAPDs Markers”. Revista De Biología Tropical 65 (1):305-19. https://doi.org/10.15517/rbt.v65i1.15266.