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Päckert, Martin; Martens, Jochen; Severinghaus, Lucia Liu (2008). "The Taiwan Firecrest (Regulus goodfellowi) belongs to the goldcrest assemblage (Regulus regulus s. l.): evidence from mitochondrial DNA and the territorial song of the Regulidae". Journal of Ornithology. 150 (1): 205–220. doi:10.1007/s10336-008-0335-5. S2CID5626256.