Gebauer, A., Kaiser, M. & Wassmann, C. (2006)

Remarks on biology, vocalisations and systematics of Urocynchramus pylzowi Przewalski (Aves, Passeriformes)

. Zootaxa, 1325 (1), 75–98.
https://doi.org/10.11646/zootaxa.1325.1.6