MOAR, Peter; STEWART, John. Newly discovered sculptured stones from Papil, Shetland. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 78, p. 91–99, 1944. DOI: 10.9750/PSAS.078.91.99. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/8212. Acesso em: 25 apr. 2024.