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WORTHY, T. H.; TENNYSON, A. J. D.; JONES, C. Miocene waterfowl and other birds from central Otago, New Zealand. Journal of Systematic Palaeontology. 2007-01-01, roč. 5, čís. 1, s. 1–39. Dostupné online [cit. 2022-05-15]. ISSN1477-2019. doi:10.1017/S1477201906001957. (anglicky)