TAKEKAWA, John et al. Geographic variation in Bar-headed Geese Anser indicus: connectivity of wintering areas and breeding grounds across a broad front. Wildfowl, [S. l.], p. 100–123, 2013. Disponível em: https://tidsskrift.dk/Wildfowl/article/view/153916. Acesso em: 16 dec. 2025.