Notes on the Excavation of a Kitchen-midden and on a Cup-marked Stone, at Den of Dun, Forfarshire. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 31, p. 240–243, 1897. DOI: 10.9750/PSAS.031.240.243. Disponível em: https://soas-test.journals.ed.ac.uk/index.php/psas/article/view/6666. Acesso em: 26 oct. 2025.