ULFVENS, J. The shore-and waterbirds on some grazed and ungrazed islands on the Finnish west coast. Ornis Fennica, [S. l.], v. 68, n. 1, p. 26–32, 1991. Disponível em: https://ornisfennica.journal.fi/article/view/133312. Acesso em: 22 nov. 2024.