ROBERGE, J.-M.; SVENSSON, S. How much time is required to survey land birds in forest-dominated atlas squares?. Ornis Fennica, [S. l.], v. 80, n. 3, p. 111–120, 2003. Disponível em: https://ornisfennica.journal.fi/article/view/133598. Acesso em: 9 may. 2024.