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, vol. 13, no. 2, Sept. 2019, pp. 157-80, https://doi.org/10.1558/jsrnc.38491.