CHRISTISON, David. Additional Notices of Yetts, or Grated Iron Doors, of Scottish Castles and Towers. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 22, p. 286–320, 1888. DOI: 10.9750/PSAS.022.286.320. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/6271. Acesso em: 1 may. 2024.