Quaisser, Christiane. 2010. β€œOn the Nomenclature of the Pale Blue Flycatcher Cyornis Unicolor Infuscatus E. Hartert, 1902 (Aves: Muscicapidae) With Lectotype Designation for Cyornis cyanopolia Blyth, 1870”. Zootaxa 2450 (1). Auckland, New Zealand:65–67. https://doi.org/10.11646/zootaxa.2450.1.6.