Report on Stone Circles in Kincardineshire (North), and part of Aberdeenshire, with measured Plans and Drawings, obtained under the Gunning Fellowship. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 34, p. 139–198, 1900. DOI: 10.9750/PSAS.034.139.198. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/6768. Acesso em: 5 dec. 2025.