BARRETT, R. T. The rise and fall of cliff-breeding seabirds in Sør-Varanger, NE Norway, 1970-2002. Fauna norvegica, [S. l.], v. 23, p. 35-41, 2003. DOI: 10.5324/fn.v23i0.5981. Disponível em: https://www.ntnu.no/ojs/index.php/fauna_norvegica/article/view/5981. Acesso em: 31 mar. 2025.