TY  - BOOK
AU  - Beckman,Bengt
TI  - Codebreakers: Arne Beurling and the Swedish crypto program during world war II 
SN  - 0821828894
AV  - D810.C88  .B42 2002
PY  - 2002///
CY  - Providence, RI
PB  - American Mathematical Society
KW  - World War, 1939-1945
KW  - Cryptography
KW  - Electronic intelligence
KW  - Sweden
ER  -