Joshua Tyler, Matthew T. Bonfitto, Gemma V. Clucas, Sushma Reddy, Jane L. Younger: Morphometric and genetic evidence for four species of gentoo penguin. Ecology and Evolution, November 2020; doi: 10.1002/ece3.6973
iucnredlist.org
RedList: Gentoo Penguin. International Union for Conservation of Nature’s Red List of Threatened Species, 28. August 2019, abgerufen am 19. November 2023 (englisch).
