NILSSON, Leif. Staging and wintering goose populations in South Sweden 1977-78 to 1986-87. Wildfowl, [S. l.], v. 39, p. 88–97, 1988. Disponível em: https://tidsskrift.dk/Wildfowl/article/view/154723. Acesso em: 5 apr. 2026.