Gelting, Paul. “Studies on the Food of the East Greenland Ptarmigan Especially in in Its Relation to Vegetation and Snow Cover”. Meddelelser om Grønland 116, no. 3 (June 18, 2026): 111 pp., 1 plate. Accessed July 1, 2026. https://tidsskrift.dk/meddrgroenland/article/view/168728.