Buainain, N., Brito, G. R. R., Firme, D. H., Figueira, D. M., Raposo, M. A. and de Assis, C. P. (2016) “Taxonomic revision of Saffron-billed Sparrow Arremon flavirostris Swainson, 1838 (Aves: Passerellidae) with comments on its holotype and type locality”, Zootaxa. Auckland, New Zealand, 4178(4), pp. 547–567. doi: 10.11646/zootaxa.4178.4.6.