STAIR-KERR, Eric. Randolph’s Capture of Edinburgh Castle - Where did he climb the Rock?. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 47, p. 423–426, 1913. DOI: 10.9750/PSAS.047.423.426. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/7298. Acesso em: 26 apr. 2024.