EICHERT, S. Early medieval fortifications in Carinthia/Austria and their historical and political background. Atti dell’Accademia roveretana degli Agiati. A, Classe di scienze umane, lettere ed arti, [S. l.], v. 2, n. 2, p. 9–31, 2012. Disponível em: https://heyjoe.fbk.eu/index.php/ataga/article/view/5244. Acesso em: 3 lug. 2024.