Fernandes Cardoso, E. 2021. The door of the caliph in the Umayyad al-Andalus: from the conceptualization to the articulation of ceremonial (10th-11th centuries).: Doctoral thesis in History presented at the University of Lisbon in 15th July, 2020. Supervised by Professor Hermenegildo Fernandes and Professor Hugh Kennedy. Medievalista. 30 (Jul. 2021), 365–385. DOI:https://doi.org/10.4000/medievalista.4575.