The Neolithic henge-type enclosure at Balfarg: a re-assessment of the evidence for an incomplete ditch circuit. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 118, p. 61–67, 1989. DOI: 10.9750/PSAS.118.61.67. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/9322. Acesso em: 5 dec. 2025.