Zerlenga, Ornella. “Drawing the Reasons of Constructed Space. Eighteenth-Century Neapolitan Open Staircases”. diségno, no. 1 (December 18, 2017): 045–056. Accessed April 25, 2024. https://disegno.unioneitalianadisegno.it/index.php/disegno/article/view/8.