GARDARSSON, Arnthor; GUDMUNDSSON, Gudmundur A. Numbers of Light-bellied Brent Geese Branta bernicla hrota staging in Iceland in spring. Wildfowl, [S. l.], p. 62–66, 1996. Disponível em: https://tidsskrift.dk/Wildfowl/article/view/154640. Acesso em: 16 dec. 2025.