ALLEN, John Romilly. Preliminary List of Sculptured Stones older than A.D. 1100, with Symbols and Celtic Ornament, in Scotland. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 24, p. 510–525, 1890. DOI: 10.9750/PSAS.024.510.525. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/6377. Acesso em: 25 apr. 2024.