Taika Salo Devries, Justiina. “Navigating Conflict: The Strategic Significance and Evolution of Navigation Techniques in the Azores Islands During World War I and World War II”. Bulletin - Association of Canadian Map Libraries and Archives (ACMLA), no. 173 (April 1, 2024): 19–36. Accessed November 29, 2024. https://openjournals.uwaterloo.ca/index.php/acmla/article/view/5691.