ROCHARD, J B A; KEAR, Janet. Field trials of the reactions of sheep to goose droppings on pasture. Wildfowl, [S. l.], v. 21, n. 21, p. 108–109, 1970. Disponível em: https://tidsskrift.dk/Wildfowl/article/view/154925. Acesso em: 13 feb. 2026.