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PMCID: PMC1560011. Dostupné online [cit. 2018-02-11]. ISSN0962-8452. doi:10.1098/rspb.2005.3260. PMID16519228.
TYLER, Joshua; BONFITTO, Matthew T.; CLUCAS, Gemma V. Morphometric and genetic evidence for four species of gentoo penguin. Ecology and Evolution. 2020, roč. 10, čís. 24, s. 13836–13846. Dostupné online [cit. 2025-01-26]. ISSN2045-7758. doi:10.1002/ece3.6973. PMID33391684. (anglicky)
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