BYRKJEDAL, I.; KÅLÅS, J. A. Censuses of breeding birds in a South Norwegian arctic-alpine habitat three decades apart show population declines in the most common species. Ornis Norvegica, [S. l.], v. 35, p. 43–47, 2012. DOI: 10.15845/on.v35i0.288. Disponível em: https://boap.uib.no/index.php/ornis/article/view/288. Acesso em: 28 mar. 2024.