NORDERHAUG, M; OGILVIE, M A; TAYLOR, R J F. Breeding success of geese in west Spitsbergen, 1964. Wildfowl, [S. l.], v. 16, p. 5, 1965. Disponível em: https://tidsskrift.dk/Wildfowl/article/view/155139. Acesso em: 5 apr. 2026.