HAUKIOJA, E. Processing moult card data with reference to the Chaffinch Fringilla coelebs. Ornis Fennica, [S. l.], v. 48, n. 1, p. 25–32, 1971. Disponível em: https://ornisfennica.journal.fi/article/view/132811. Acesso em: 18 may. 2024.