McKee, Fraser. “Aaron S. Hamilton, Total Undersea War. The Evolutionary Role of the Snorkel in Dönitz’s U-Boat Fleet 1944-1945 (Fraser McKee) ”. The Northern Mariner / Le marin du nord 31, no. 1 (July 16, 2021): 96–98. Accessed May 3, 2024. https://tnm.journals.yorku.ca/index.php/default/article/view/136.