Gould, John. The Birds of Europe. Volume 2. J. Gould (1836) The title page has the year as 1837. Plate 118 has legend: Gorget Warbler, Calhope lathamii. The list of plates at the beginning of the volume has Calliope.
(2010) „Multi-locus phylogenetic analysis of Old World chats and flycatchers reveals extensive paraphyly at family, subfamily and genus level (Aves: Muscicapidae)”. Molecular Phylogenetics and Evolution57 (1), 380-392. o. DOI:10.1016/j.ympev.2010.07.008.
