NILSSON, Leif. Changes in numbers and distribution of staging and wintering goose populations in Sweden, 1977/78—1998/99. Ornis Svecica, Lund, Sweden, v. 10, n. 1, p. 33–49, 2000. DOI: 10.34080/os.v10.22886. Disponível em: https://journals.lub.lu.se/os/article/view/22886. Acesso em: 26 apr. 2024.