Cavarzere, Vagner, et al. “ Taxonomy and Biogeography of Stephanoxis Simon, 1897 (Aves: Trochilidae) ”. Papéis Avulsos De Zoologia, vol. 54, no. 7, Jan. 2014, pp. 69-79, https://doi.org/10.1590/0031-1049.2014.54.07.