LAURENTI, Stefano; VIALI, Paolo. International Waterbirds Census (IWC) data, collected in the Terni province (Umbria): beginning of the S. Liberato Bird sanctuary. Rivista Italiana di Ornitologia, [S. l.], v. 82, n. 1-2, 2012. DOI: 10.4081/rio.2012.173. Disponível em: https://sisn.pagepress.org/rio/article/view/173. Acesso em: 21 nov. 2024.