Areta & Pearman 2009, p. 135. Areta, Juan; Pearman, Mark (2009). "Natural History, Morphology, Evolution, and Taxonomic Status of the Earthcreeper Upucerthia saturatior (Furnariidae) from the Patagonian Forests of South America". The Condor. 111 (1): 135–149. doi:10.1525/cond.2009.080009. S2CID86727134.
Areta & Pearman 2009, p. 135. Areta, Juan; Pearman, Mark (2009). "Natural History, Morphology, Evolution, and Taxonomic Status of the Earthcreeper Upucerthia saturatior (Furnariidae) from the Patagonian Forests of South America". The Condor. 111 (1): 135–149. doi:10.1525/cond.2009.080009. S2CID86727134.