1.
Ulfvens J, Hildén O, Hästbacka H. Marked population increase in the Arctic Skua Stercorarius parasiticus in the Finnish Quark from 1957 to 1987. Ornis Fenn [Internet]. 1988Jul.1 [cited 2024Nov.26];65(2):86–88. Available from: https://ornisfennica.journal.fi/article/view/133262