Account of the Opening of a Cairn on the Estate of Pittodrie, Aberdeenshire. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 6, p. 276–278, 1865. DOI: 10.9750/PSAS.006.276.278. Disponível em: https://soas-test.journals.ed.ac.uk/index.php/psas/article/view/5193. Acesso em: 1 oct. 2025.