CHILDE, V Gordon; THORNEYCROFT, Wallace. The Experimental Production of the Phenomena Distinctive of Virtified Forts. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 72, p. 44–55, 1938. DOI: 10.9750/PSAS.072.44.55. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/8085. Acesso em: 19 apr. 2024.