STEVENSON, Robert B K. The Celtic brooch from Westness, Orkney, and hinged-pins. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 119, p. 239–269, 1990. DOI: 10.9750/PSAS.119.239.269. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/9363. Acesso em: 25 apr. 2024.