Skene, William F. “Notice of the Probable Author of the Unpublished History of Scotland, Erroneously Attributed to Bishop Elphinstone of Aberdeen”. Proceedings of the Society of Antiquaries of Scotland 9 (November 30, 1873): 447–451. Accessed April 27, 2024. https://journals.socantscot.org/index.php/psas/article/view/5522.