LAWRENCE, David. Neolithic mortuary practice in Orkney. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 136, p. 47–59, 2007. DOI: 10.9750/PSAS.136.47.59. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/9673. Acesso em: 27 apr. 2024.