MIKKONEN, A. Factors influencing the spring arrival of the Brambling Fringilla montifringilla in northern Finland. Ornis Fennica, [S. l.], v. 58, n. 2, p. 78–82, 1981. Disponível em: https://ornisfennica.journal.fi/article/view/133065. Acesso em: 20 may. 2024.