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Outlaw, R.K.; Voelker, G.; Bowie, R.C.K. (2010). ”Shall we chat? Evolutionary relationships in the genus Cercomela (Muscicapidae) and its relation to Oenanthe reveals extensive polyphyly among chats distributed in Africa, India and the Palearctic”. Molecular Phylogenetics and Evolution 55 (1): sid. 284–292. doi:10.1016/j.ympev.2009.09.023. PMID 19772925.
Aliabadian, M.; Kaboli, M.; Förschler, M.I.; Nijman, V.; Chamani, A.; Tillier, A.; Prodon, R.; Pasquet, E.; et al. (2012). ”Convergent evolution of morphological and ecological traits in the open-habitat chat complex (Aves, Muscicapidae: Saxicolinae)”. Molecular Phylogenetics and Evolution 65 (1): sid. 35–45. doi:10.1016/j.ympev.2012.05.011. PMID 22634240.