References
- Padfield . 1984 . Dönitz. The Last Führer 363
- Ibid.
- Hinsley . 1981 . British Intelligence in the Second World War Vol. 3 , 233 HMSO (Vol., part 4, p
- Rohwer , J. and Hummelchen , G. 1974 . Chronology of the War at Sea 354 (Military Book Society, Vol II, p
- Lamb , J. B. 1979 . The Corvette Navy 1979 Futura p
- 1989 . The U-Boat War in the Atlantic, September 1943—February 1944 26 Ministry of Defence, Ch. VIII, p
- Ibid. 27
- 1988 . Ultra at Sea 158 Leo Cooper Rohwer & Hummelchen, xi; John Winton (p
- Another term for the same acoustic torpedo.
- Rohwer and Hummelchen . 255 II, p
- Roskill , S. W. 1960 . The War at Sea 40 HMSO . (Vol. III, parti, p
- 20 Public Record Office, Kew, Adm. 199/2060, p
- The U-Boat War 27 Ministry of Defence, p
- Ibid. asterisked footnote