BioStor
 | Types of Birds in the Tring Museum. B. Types in the General Collection (Part 1) Ernst Harteet (1919) Novitates Zoologicae 26: 123-178 |
 | Generic names applied to birds during the years 1916 to 1922, inclusive, with additions to Waterhouse's "Index Generum Avium" Charles W Richmond (1927) Proceedings of The United States National Museum 70(2664): 1-44 |
 | The sequence of genera in the Estrildidae (Aves) E Mayr (1968) Breviora 287: 1-14 |
 | Type-specimens of birds in the British Museum (Natural History). Vol. 3. Systematic index Rachel L M Warren and C J O Harrison (1973) |