Whitney, Elspeth. “Phlegmatic Landscapes: Perceptions of Wetlands, ’Acedia’, and Complexion Theory in Selected Later Medieval Allegorical Pilgrim Narratives”. Journal for the Study of Religion, Nature and Culture 13, no. 2 (September 4, 2019): 157–180. Accessed August 15, 2024. https://journal.equinoxpub.com/JSRNC/article/view/12567.