1.
McHardy AB. On Vitrified Forts, with Results of Experiments as to the Probable Manner in which their Vitrification may have been produced. PSAS [Internet]. 1906 Nov. 30 [cited 2024 Nov. 24];40:136-50. Available from: https://journals.socantscot.org/index.php/psas/article/view/7053