ALONSO, J. A.; ALONSO, J. C.; CANTOS, F. C. On the size of the Common Crane Grus grus population migrating through western Europe. Ornis Fennica, [S. l.], v. 63, n. 2, p. 58–59, 1986. Disponível em: https://ornisfennica.journal.fi/article/view/133209. Acesso em: 23 nov. 2024.