Arroyo, S. B.; Sánchez, P. M.; Ramírez-Pinilla, M. P.; Suárez, H. A.; Miranda-Esquivel, D. R. Morphometric Analysis to Differentiate Taxonomically Seven Species of Eleutherodactylus (Amphibia: Anura: Leptodactylidae) from an Andean Cloud Forest of Colombia. Zootaxa 2005, 1018, 1–14.