BioStor
 | March 11, 1856 Gray (1856) Proceedings of The Zoological Society of London 1856: 37-54 |
 | List of generic terms proposed for birds during the years 1890 to 1900, inclusive, to which are added names omitted by Waterhouse in his "Index Generum Avium" Charles W Richmond (1902) Proceedings of The United States National Museum 24: 663-730 |
 | The North American forms oi Astragalinus psaltria Say H C Oberholser (1903) Proceedings of The Biological Society of Washington 16: 113-116 |
 | A Synopsis of the Genus Psaltriparus Harry C Oberholser (1903) The Auk 20: 198-201 |
 | On a collection of birds from West-Central and North-Western Yunnan (1921) Novitates Zoologicae 28: 14-67 |
 | Systematic Relationships Of The Verdin: Skeletal Evidence (Aves : Passeriformes) J D Webster (2000) Proceedings of The Biological Society of Washington 113: 828-835 |