Excavation of a Neolithic settlement and ritual complex at Beckton Farm, Lockerbie, Dumfries & Galloway. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 127, p. 69–121, 1998. DOI: 10.9750/PSAS.127.69.121. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/9963. Acesso em: 5 dec. 2025.