Chilquillo, E., J. Albán, M. Arakaki, A. O. Simoes, C. Maldonado, P. Romero, J. L. Ramírez, I. Cruz, L. Arieta, e J. C. Torres. “Advances in the Phylogenetic Study of the Tribe Cinchoneae (Rubiaceae) With Emphasis on the Genus Cinchona and Ladenbergia”. Bonplandia, vol. 32, outubro de 2023, p. 6, https://revistas.unne.edu.ar/index.php/bon/article/view/6943.