Notice of a Carved Stone at Crail, Fifeshire. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 33, p. 53–54, 1899. DOI: 10.9750/PSAS.033.53.54. Disponível em: https://soas-test.journals.ed.ac.uk/index.php/psas/article/view/6726. Acesso em: 26 oct. 2025.