Cross-Slabs recently discovered in the Isle of Man. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 46, p. 53–76, 1912. DOI: 10.9750/PSAS.046.53.76. Disponível em: https://soas-test.journals.ed.ac.uk/index.php/psas/article/view/7239. Acesso em: 28 oct. 2025.