BARCLAY, Gordon J; MAXWELL, Gordon S; MILLS, Coralie. Excavation of a Neolithic long mortuary enclosure within the Roman legionary fortress at Inchtuthil, Perthshire. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 121, p. 27–44, 1992. DOI: 10.9750/PSAS.121.27.44. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/9398. Acesso em: 3 may. 2024.