WALKER, J Russell. Notes on a Peculiar Class of Recumbent Monuments. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 19, p. 406–424, 1885. DOI: 10.9750/PSAS.019.406.424. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/6167. Acesso em: 3 may. 2024.