Avendaño, J. E., Barker, F. K., & Cadena, C. D. (2016).

The Yellow-green Bush-tanager is neither a bush-tanager nor a sparrow:
Molecular phylogenetics reveals that Chlorospingus flavovirens is a tanager (Aves: Passeriformes; Thraupidae)

. Zootaxa, 4136(2), 373–381. https://doi.org/10.11646/zootaxa.4136.2.7