1.
Bengtsson K, Pedersen KT. The occurrence of eastern Common Gulls Larus canus heinei in the region of Ă–resund. Ornis Svec [Internet]. 1998 Oct. 1 [cited 2024 Apr. 27];8(4):145-56. Available from: https://journals.lub.lu.se/os/article/view/22939