Calder, Charles S T, and Audrey S Henshall. “Cairns, Neolithic Houses and Burnt Mounds in Shetland”. Proceedings of the Society of Antiquaries of Scotland 96 (November 30, 1965): 37–86. Accessed May 7, 2024. https://journals.socantscot.org/index.php/psas/article/view/10093.