Jan N I. Ohlson; Martin Irestedt; Per G. P. Ericson; Jon Fieldsa (2013). "Phylogeny and classification of the New World suboscines (Aves, Passeriformes)". Zootaxa. 3613 (1): 1–35. doi:10.11646/zootaxa.3613.1.1. PMID24698900.
Jan N I. Ohlson; Martin Irestedt; Per G. P. Ericson; Jon Fieldsa (2013). "Phylogeny and classification of the New World suboscines (Aves, Passeriformes)". Zootaxa. 3613 (1): 1–35. doi:10.11646/zootaxa.3613.1.1. PMID24698900.