[1]
Quaisser, C. 2010. On 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 (May 2010), 65–67. DOI:https://doi.org/10.11646/zootaxa.2450.1.6.