NILSSON, L.; NILSSON, J. Changes in numbers and distribution of breeding waterfowl in the Swedish mountain chain between 1972—1975 and 2009. Ornis Svecica, Lund, Sweden, v. 22, n. 3–4, p. 107–126, 2012. DOI: 10.34080/os.v22.22589. Disponível em: https://journals.lub.lu.se/os/article/view/22589. Acesso em: 5 dec. 2022.