SAWA, Yusuke et al. Migration routes and population status of the Brent Goose Branta bernicla nigricans wintering in East Asia. Wildfowl, [S. l.], p. 244–266, 2020. Disponível em: https://tidsskrift.dk/Wildfowl/article/view/156282. Acesso em: 16 dec. 2025.