Kristiansen JN, Walsh AJ, Fox AD, Boyd H, Stroud DA. Variation in the belly barrings of the Greenland White-fronted Goose Anser albifrons flavirostris. Wildfowl [Internet]. 1999 Jan. 1 [cited 2026 Feb. 13];:21-8. Available from: https://tidsskrift.dk/Wildfowl/article/view/154587