Costa, T. V. V., Joseph, L. and Silveira, L. F. (2016) “Considerations on the type specimens and type locality of Pyrrhura roseifrons (Gray, 1859) (Psittacidae)”, Zootaxa. Auckland, New Zealand, 4179(1), pp. 107–110. doi: 10.11646/zootaxa.4179.1.5.