New evidence on breaking the Japanese army codes

Notes

• Drea , Edward J. 1995 . ‘Were the Japanese Army Codes Secure?’ . Cryptologia , 19 ( 2 ) April : 115
   Google Scholar
• Mead , David . 1994 . ‘The Breaking of the Japanese Army Administrative Code’ . Cryptologia , 18 ( 3 ) July : 198
   Google Scholar
• Maneki , Sharon A. , ed. 1996 . United States Cryptologic History, Series IV, World War II, Vol.7, The Quiet Heroes of the Southwest Pacific Theater: An Oral History of the Men and Women of CBB and FRUMEL , 30 NSA : Center for Cryptologic History .
   Google Scholar
• Central Bureau, Brisbane . 31 Jan. 1944 . “ ‘Monthly Progress Report’ ” . 31 Jan. ,
   Google Scholar
• Central Bureau, Brisbane . 30 April 1944 . “ ‘Monthly Progress Report’ ” . 30 April ,
   Google Scholar
• Drea , Edward J. 1990 . “ ‘Ultra Intelligence and General Douglas MacArthur's Leap to Hollandia, January‐April 1944’ ” . In Intelligence and Military Operations , Edited by: Handel , Michael I. 332 London : Frank Cass .
   Google Scholar
• Central Bureau, Brisbane . 30 April 1944 . “ ‘Monthly Progress Report’ ” . 30 April ,
   Google Scholar
• Ballard , Geoffrey St Vincent . 1991 . On ULTRA Active Service: The Story of Australia's Signals Intelligence Operations during World War II , 196 Richmond, Victoria , , Australia : Spectrum .
   Google Scholar