LI, Chang et al. Population trends and migration routes of the East Asian Bean Goose Anser fabalis middendorffii and A. f. serrirostris. Wildfowl, [S. l.], p. 124–156, 2020. Disponível em: https://tidsskrift.dk/Wildfowl/article/view/156285. Acesso em: 16 dec. 2025.