A Neolithic ring-mound at Midtown of Pitglassie, Auchterless, Aberdeenshire. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 126, p. 17–51, 1997. DOI: 10.9750/PSAS.126.17.51. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/9928. Acesso em: 7 dec. 2025.