SÖDERHOLM, Svante. Population development and breeding success of Pochard Aythya ferina at Angarnsjöängen, Uppland, in 1995—2005. Ornis Svecica, Lund, Sweden, v. 15, n. 4, p. 220–228, 2005. DOI: 10.34080/os.v15.22730. Disponível em: https://journals.lub.lu.se/os/article/view/22730. Acesso em: 29 mar. 2024.