Excavations of Neolithic and Bronze Age sites near Peterhead, Aberdeenshire, 1998. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 133, p. 137–171, 2004. DOI: 10.9750/PSAS.133.137.171. Disponível em: https://soas-test.journals.ed.ac.uk/index.php/psas/article/view/9577. Acesso em: 1 oct. 2025.