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ALSTRÖM, Per; HOOPER, Daniel M.; LIU, Yang. Discovery of a relict lineage and monotypic family of passerine birds. Biology Letters. 2014-03, roč. 10, čís. 3, s. 20131067. Dostupné online [cit. 2024-02-19]. ISSN1744-9561. DOI10.1098/rsbl.2013.1067. PMID24598108. (anglicky)