HEINICKE, Thomas. Tundra Bean Goose Anser fabalis rossicus during spring migration in northern Sweden—rare visitor or regular passage migrant?. Ornis Svecica, Lund, Sweden, v. 20, n. 3–4, p. 174–183, 2010. DOI: 10.34080/os.v20.22618. Disponível em: https://journals.lub.lu.se/os/article/view/22618. Acesso em: 23 apr. 2024.