MCGILL, Lyndsay. Scottish heart brooches: a re-evaluation of the luckenbooth. Proceedings of the Society of Antiquaries of Scotland, [S. l.], v. 151, p. 223–234, 2022. DOI: 10.9750/PSAS.151.1342. Disponível em: https://journals.socantscot.org/index.php/psas/article/view/10569. Acesso em: 3 may. 2024.