Ubaid, F. K., Silveira, L. F., Medolago, C. A. B., Costa, T. V. V., Francisco, M. R., Barbosa, K. V. C., & Júnior, A. D. S. (2018).

Taxonomy, natural history, and conservation of the Great-billed Seed-Finch Sporophila maximiliani (Cabanis, 1851) (Thraupidae, Sporophilinae)

. Zootaxa, 4442(4), 551–571. https://doi.org/10.11646/zootaxa.4442.4.4