Grady, John. “F. Small, Here Begins the Dark Sea: Venice, a Medieval Monk, and the Creation of the Most Accurate Map of the World by John Grady”. The Northern Mariner / Le marin du nord 33, no. 3-4 (June 28, 2024): 569–570. Accessed November 23, 2024. https://tnm.journals.yorku.ca/index.php/default/article/view/1219.