MOOIJ, J H. Behaviour and energy budget of wintering geese in the Lower Rhine area of north Rhine-Westphalia, Germany. Wildfowl, [S. l.], v. 43, p. 121–138, 1992. Disponível em: https://tidsskrift.dk/Wildfowl/article/view/155345. Acesso em: 15 apr. 2026.