1. The role of digestibility in the selection of spring feeding sites by Brent Geese;BOUDEWIJN T.;Wildfowl,1984
2. The Effects of Grazing by Lesser Snow Geese on the Vegetation of a Sub- Arctic Salt Marsh
3. Ornithologiske Iagttagelser ved Daneborg, N.Ø;CONRADSEN F.R.;Granland. Dansk Orn. Foren. Tidsskr,1957
4. Habitat ecology of Pacific Black Brant and other geese moulting near Teshekpuk Lake, Alaska;DERKSEN D.V.;Wildfowl,1982