German submarine U-64 (1939)

December 2014閲覧。 Hofmann, Markus. “U 511” (German). Deutsche U-Boote 1935-1945 - u-boot-archiv.de. 7 December 2014閲覧。 Submarine RO-500: Tabular Record of Movement

204-206. ^ “Biber”. Royal Navy Submarine Museum. 26 February 2011閲覧。 ^ Seeney, Brian (2004年3月1日). “Our German Submarine has a Starring TV Role”. Museum

Friedrich. Saunders, M. G訳 (1963) (英語). Der Seekrieg : the German Navy's story, 1939-1945. Annapolis: U. S. Naval Institute. p. 46. NCID BA87558640  ^ オウヴァリー

THISTLE ^ Submarines versus U-boats, p. 40 Geirr H Haarr, No Room for Mistakes: British and Allied Submarine Warfare 1939–1940, Seaforth Publishing, 2015

Hitler's U-Boat War - The Hunters, 1939-1942. Modern Library. pp. 81, 85–86, 144. ISBN 0-679-64032-0  ^ Michel Thomas Poirier Results of the German and American