Hill, Peter, Roger Mercer, Dale Idiens, Paul Buckland, David J Breeze, Susan Walker, and Elizabeth Cumming. “Lecture Summaries”. Proceedings of the Society of Antiquaries of Scotland 122 (November 30, 1993): 509–513. Accessed November 24, 2024. https://journals.socantscot.org/index.php/psas/article/view/9451.