M. R. D. Foot: S O E in France. An Account of the Work of the British Special Operations Executive in France 1940-1944. History of the Second World War. London, Her Majesty's Stationery Office, 1966. xxx + 550 s. Ill. 45 sh. - E. H. Cookridge: Inside S O E. The Story of Special Operations in Western Europe 1940-45. London, Arthur Barker Limited, 1966. xvi + 640 s. 50 sh. - Hæstrup, Jørgen (Historisk Tidsskrift, 1969)