Olin, Crystal Victoria. “Porta Pia, Gatedness and Artistic Reinterpretation: Engaging With an Urban Threshold across Time and Place”. Spunti E Ricerche, vol. 38, Mar. 2025, pp. 23-39, https://mail.spuntiericerche.net.au/index.php/spuntiericerche/article/view/751.