JÄRVINEN, O.; KOSKIMIES, P. Dynamics of the status of threatened birds breeding in Finland 1935–1985. Ornis Fennica, [S. l.], v. 67, n. 3, p. 84–97, 1990. Disponível em: https://ornisfennica.journal.fi/article/view/133304. Acesso em: 16 may. 2024.