IRVINE, James T. Notes on Sepulchral Cairns discovered by the blowing of sand on the Sands of Bracon; and on the Sculptured Stone discovered at South Garth, Island of Yell, Shetland. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 32, p. 171–174, 1898. DOI: 10.9750/PSAS.032.171.174. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/6700. Acesso em: 20 apr. 2024.