Alström, P.; Ericson, P.G.P.; Olsson, U. & Sundberg, P. (2006): Phylogeny and classification of the avian superfamily Sylvioidea. Molecular Phylogenetics and Evolution38(2): 381–397. COI:10.1016/j.ympev.2005.05.015
Captain J. Delacour (1942) "The Bush-Warblers of the Genera Cettia and Bradypterus, with Notes on Allied Genera and Species". Ibis84 (4): 509-519, COI:10.1111/j.1474-919X.1942.tb03450.x
