NEWTON, I; THOM, V M; BROTHERSTON, W. Behaviour and distribution of wild geese in south-east Scotland. Wildfowl, [S. l.], v. 24, p. 111–122, 1973. Disponível em: https://tidsskrift.dk/Wildfowl/article/view/154874. Acesso em: 5 apr. 2026.