Excavation of an unnamed castle at Cullykhan, Castle Point, Troup. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 142, p. 301–328, 2013. DOI: 10.9750/PSAS.142.301.328. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/9791. Acesso em: 1 feb. 2026.