Murray, Diana, Ian Ralston, P J Ashmore, M Harman, I A G Shepherd, and L Thoms. “The Excavation of a Square-Ditched Barrow and Other Cropmarks at Boysack Mills, Inverkeilor, Angus”. Proceedings of the Society of Antiquaries of Scotland 127 (November 30, 1998): 359-386. Accessed May 30, 2023. http://journals.socantscot.org/index.php/psas/article/view/9969.