KRAPU, G L; BRANDT, D A; BEISER, J A. Factors associated with Autumn rearing of duck broods in temperate North America. Wildfowl, [S. l.], p. 143–156, 2001. Disponível em: https://tidsskrift.dk/Wildfowl/article/view/153964. Acesso em: 17 dec. 2025.