MITCHELL, Carl; BOYD, Hugh; OWEN, Myrfyn; OGILVIE, Malcolm. Fifty years of goose research and conservation by The Wildfowl & Wetlands Trust. Wildfowl, [S. l.], v. 47, p. 230–239, 1996. Disponível em: https://tidsskrift.dk/Wildfowl/article/view/154631. Acesso em: 3 apr. 2026.