BERG, Åke; EMANUELSSON, U.; REHNBERG, M. Surveys of the birds in the Rautas area in 1978 and 2001—population changes in an alpine area. Ornis Svecica, Lund, Sweden, v. 14, n. 4, p. 159–168, 2004. DOI: 10.34080/os.v14.22760. Disponível em: https://journals.lub.lu.se/os/article/view/22760. Acesso em: 16 may. 2022.