World. New York: Simon & Schuster. 1994: 247. ISBN 0-671-89102-2. Beevor, Antony. Berlin: The Downfall 1945. Viking-Penguin Books. 2002: 139. ISBN 0-670-03041-4
1999. ISBN 1-57003-492-3. Preston, Antony. The Royal Navy Submarine Service, A Centennial History MaritimeQuest Holland Class Overview (页面存档备份,存于互联网档案馆)