KELLER, Ferdinand. On the Ancient Stone Edifices in the Alps, called Heathen Huts. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 4, p. 56–58, 1862. DOI: 10.9750/PSAS.004.56.58. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/4559. Acesso em: 4 may. 2024.