Hernández-Baños, B.E., Zamudio-Beltrán, L.E. & Milá, B. (2020)

Phylogenetic relationships and systematics of a subclade of Mesoamerican
emerald hummingbirds (Aves: Trochilidae: Trochilini)

. Zootaxa, 4748 (3), 581–591.