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Lijtmaer, Darío A.; Sharpe, Nadine M. M.; Tubaro, Pablo L.; Lougheed, Stephen C. (December 2004). "Molecular phylogenetics and diversification of the genus Sporophila (Aves: Passeriformes)". Molecular Phylogenetics and Evolution. 33 (3): 562–579. doi:10.1016/j.ympev.2004.07.011. ISSN1055-7903. PMID15522788.
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Lijtmaer, Darío A.; Sharpe, Nadine M. M.; Tubaro, Pablo L.; Lougheed, Stephen C. (December 2004). "Molecular phylogenetics and diversification of the genus Sporophila (Aves: Passeriformes)". Molecular Phylogenetics and Evolution. 33 (3): 562–579. doi:10.1016/j.ympev.2004.07.011. ISSN1055-7903. PMID15522788.
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Porzio, Natália S.; Repenning, Márcio; Fontana, Carla S. (March 2019). "Evolution of Beak Size and Song Constraints in Neotropical Seedeaters (Thraupidae: Sporophila)". Acta Ornithologica. 53 (2): 173–180. doi:10.3161/00016454AO2018.53.2.007. ISSN0001-6454.
Medolago, Cesar A. B.; Ubaid, Flávio K.; Francisco, Mercival R.; Silveira, Luís F. (September 2016). "Description of the nest and eggs of the Great-billed Seed-Finch (Sporophila maximiliani)". The Wilson Journal of Ornithology. 128 (3): 638–642. doi:10.1676/1559-4491-128.3.638. ISSN1559-4491.
Machado, Ricardo Bomfim; Silveira, Luís Fábio; da Silva, Maria Izabel Soares Gomes; Ubaid, Flávio Kulaif; Medolago, Cesar Augusto; Francisco, Mercival Roberto; Dianese, José Carmine (2019-08-08). "Reintroduction of songbirds from captivity: the case of the Great-billed Seed-finch (Sporophila maximiliani) in Brazil". Biodiversity and Conservation. 29 (5): 1613–1636. doi:10.1007/s10531-019-01830-8. ISSN1572-9710.