Van Opstall, E.M. (2019). Sacred Thresholds. The Door to the Sanctuary in Late Antiquity. ARYS, [S. l.], n. 18, p. 501–505, 2020. DOI: 10.20318/arys.2020.5598. Disponível em: https://e-revistas.uc3m.es/index.php/ARYS/article/view/5598. Acesso em: 5 dec. 2025.