RATTISTE, K.; LILLELEHT, V. Population ecology of the Common Gull Larus canus in Estonia. Ornis Fennica, [S. l.], v. 64, n. 1, p. 25–26, 1987. Disponível em: https://ornisfennica.journal.fi/article/view/133230. Acesso em: 14 sep. 2024.