Opening of the Fairy Knowe of Pendreich, Bridge of Allan. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 7, p. 519–523, 1867. DOI: 10.9750/PSAS.007.519.523. Disponível em: https://soas-test.journals.ed.ac.uk/index.php/psas/article/view/5365. Acesso em: 1 oct. 2025.