RITCHIE, James. Notes on Some Aberdeenshire Sculptured Stones and Crosses. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 49, p. 33–49, 1915. DOI: 10.9750/PSAS.049.33.49. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/7351. Acesso em: 30 apr. 2024.