Harris, James T., og David M. Clement. “Greenland Peregrines at Their Eyries - a Behavioral Study of the Peregrine Falcon”. Meddelelser om Grønland 205, no. 3 (januar 1, 1975): 28 pp. Set september 18, 2024. https://tidsskrift.dk/meddrgroenland/article/view/141503.